New discoveries at San Sebastian
Company Website:
http://www.hecla-mining.com
COEUR D’ALENE, Idaho -- (Business Wire)
Hecla Mining Company (NYSE:HL)
today provided an update on its exploration programs during the third
quarter.
Third Quarter Exploration Highlights
-
Drilling at San Sebastian has identified polymetallic zones similar to
the Hugh Zone on the Middle and West Francine veins.
-
Surface and underground drilling at Casa Berardi has expanded and
refined resources to increase the size and number of the open pits and
extended high-grade lenses along strike and at depth in the
underground.
-
Drilling of East Ore, NWW and Upper Plate zones is expected to convert
resources into reserves in the upper and central part of the Greens
Creek Mine.
“Exploration success continues at San Sebastian with the discovery of
additional high-grade mineralization that has the potential to extend
the mine life. When we restarted San Sebastian we had less than a
two-year mine plan and now we see potential through 2020 and beyond. As
well, new zones are emerging along both the Middle and Francine veins
with similar mineralogy as the Hugh Zone, a 1.5 million ton polymetallic
resource, so we see the underground sulphide deposit potentially growing
to further extend mine life,” said Phillips S. Baker, Jr., President and
CEO. “At Casa Berardi, the exploration confirms our view of the
exploration potential we believed was possible when we acquired the
property. The surface program is expanding the open pits and the
underground is identifying new lenses with good grades. Finally,
drilling at Greens Creek has discovered high-grade mineralization high
up in the mine which could enhance Greens Creek’s already exceptional
mine economics.”
San Sebastian
During the quarter, three core drills were active along the Middle,
Francine and West Francine vein areas.
In-fill holes were drilled primarily along the western portion of the Middle
Vein to aid stope design for underground mine development. The
results of in-fill drilling are consistent with or better than those
from previous drilling. These veins are narrow but show good continuity
and are open to the west and at depth. Assay results from in-fill
drilling this quarter include, 0.26 oz/ton gold and 54.9 oz/ton silver
over 3.5 feet and 0.19 oz/ton gold and 41.3 oz/ton silver over 4.4 feet.
Some drilling of the WestMiddle Vein was directed toward
a new zone of high-grade mineralization that is similar to the
mineralization in the previously discovered Hugh Zone on the Francine
Vein. Assay results from this new zone include 0.02 oz/ton gold, 9.5
oz/ton silver, 3% copper, 2% lead, and 5% zinc over 4.0 feet and 0.07
oz/ton gold, 12.0 oz/ton silver, 4% copper, 6% lead, and 9% zinc over
5.4 feet. This mineralization is located about 300 feet west and
300 feet below the new Middle Vein underground mine development. In
addition to containing high-grade gold and silver, this area also has
potentially recoverable quantities of copper, lead, and zinc.
On the Francine Vein, two drill holes intersected high-grade
mineralization approximately 600 feet to the west of the current Hugh
Zone resource area and returned 0.01 oz/ton gold, 28.5 oz/ton
silver, 6% copper, 9% lead, and 14% zinc over 3.6 feet and 0.01 oz/ton
gold, 19.7 oz/ton silver, 3% copper, 12% lead, and 13% zinc over 3.4
feet. More recent drilling a further 500 feet to the west intersected
polymetallic veins. These recent vein intercepts suggest that the Hugh
Zone resource area extends to the west, and closer to surface.
Additionally, a drill hole 2,500 feet to the west of the Hugh Zone
resource intersected a polymetallic vein with assay results of 0.01
oz/ton gold, 6.2 oz/ton silver, 2% copper, 3% lead, and 4% zinc over 12
feet. The vein is largely open between the most recent drilling west of
the Hugh Zone and this most western intersection. Drilling continues to
expand resources and evaluate deeper polymetallic targets along the
Middle and Francine veins.
Recent assay results from drilling on the East Francine Vein,
0.01 oz/ton gold and 14.8 oz/ton silver over 12.8 feet, have defined a
large resource approximately 1,200 feet east of existing workings.
Drilling along the adjacent EastMiddle Vein, intersected
0.05 oz/ton gold and 7.6 oz/ton silver over 8.0 feet. These two
discoveries are close together, increasing the potential for the
development of a new mining area.
More complete drill assay highlights from San Sebastian can be found in
Table A at the end of this release and a presentation showing drill
intersection locations is available at the following: http://ir.hecla-mining.com/interactive/newlookandfeel/4130678/Hecla-Q3-2017-ExplorationUpdate.pdf.
Casa Berardi – Quebec
During the third quarter, seven underground drills were used to refine
stope designs and expand reserves and resources in the 118, 123, and 124
zones. Up to four drills on surface completed both in-fill and
exploration drilling to define a series of open pit areas along the Casa
Berardi Fault.
At the Lower 118 Zone, drilling has confirmed the continuity of
multiple mineralized lenses that extend over 1,600 feet down-plunge and
remain open to depth and to the east and west of the current resources.
Drilling at the lower 118 Zone returned 0.26 oz/ton gold over 19.5 feet
outside the western limit of the resources and suggests there is good
potential to extent high-grade resources to the west. Recent drilling
returned strong mineralization including 0.21 oz/ton gold over 8.2 feet
and 0.20 oz/ton gold over 10.8 feet approximately 150 feet below the
current mine infrastructure.
Drilling of stacked, high-grade lenses of the 123 Zone show that
mineralized lenses identified higher in the mine extend to depth and
define a semi-continuous mineralized zone of over 3,000 feet down-dip
and 1,600 feet of strike length. Drilling of the lower 123 Zone at the
bottom of the mine show that it is open at depth and to the east and
west of the current resources. Exploration drilling below the mine
infrastructure intersected 0.33 oz/ton gold over 11.5 feet and 0.29
oz/ton gold over 25.6 feet showing the continuity of the mineralization
down-plunge of the zone. Drilling on the western extreme of the lower
123 Zone intersected 0.32 oz/ton gold over 73.0 feet, confirming the
continuation of multiple lenses to the west and below the mine
infrastructure. Exploration drilling is planned for the fourth quarter
to further define this western extension.
Intersections from drilling on the upper part of the 124 Zone
include 0.40 oz/ton gold over 9.8 feet and 0.43 oz/ton gold over 9.5
feet, suggesting mineralization continues down from surface and is open
at depth and to the west. Drilling in this area has also confirmed the
high-grade nature of the crown pillar below the proposed Principal Pit.
Additionally, exploration drilling from surface targeting the shallow
eastern extension of the 124 Zone intersected strong mineralization,
suggesting the potential for underground mining. Underground drilling of
this target is planned for the fourth quarter from the 290 drift.
A series of potential pits along the Casa Berardi Fault are being
investigated. Surface drilling along the northeast extension of the
proposed Principal Pit area confirmed 1,200 feet of continuity to
the northeast and includes an intersection of 0.24 oz/ton gold over 19.7
feet. Recent surface drilling near the Casa Berardi Fault at the 134
Zone has identified a series of high-grade, sub-parallel veins
within broader intersections of 0.06 oz/ton gold over 106.0 feet and
0.07 oz/ton gold over 43.0 feet. This drilling has shown good continuity
and final pit optimization studies are being completed. Deeper drilling
has demonstrated that the down-plunge extensions of this mineralization,
including an intersection of 0.21 oz/ton gold over 16.3 feet, will
likely extend below the pit and may have potential for underground
mining.
Definition drilling of the 160 Zone, including 0.10 oz/ton gold
over 149.3 feet and 0.12 oz/ton gold over 29.6 feet, has confirmed the
continuity and grade of the resources and is the basis for the current
investigation into the viability of another open pit. Drilling the west
extension of the current East Mine Crown Pillar (EMCP) pit
has return 0.11 oz/ton gold over 27.1 feet and 0.09 oz/ton gold over
61.4 feet to define an extension over 650 feet to the west of the
current pit outline.
Surface exploration drilling of the NW-SWZone at the west
end of the mining lease is investigating the surface pillar within 1,000
feet of surface. Drilling has intersected strong mineralization north of
the Casa Berardi Fault including a broad mineralized zone of 0.09 oz/ton
gold over 42.7 feet that contains an interval of 0.23 oz/ton gold over
9.8 feet. Overall, these intersections show the expansion of
mineralization up-dip of the Lower Inter and South West zones to create
new near-surface inferred resources. In-fill drilling in 2017 may
convert a large portion of those resources to indicated category with
the eventual incorporation into the life of mine plan. Exploration
drilling continues to expand these mineralized zones along strike to the
west. Deeper drilling from surface of the Lower InterZone
returned 0.19 oz/ton gold over 19.7 feet along the northern contact of
the Lower Inter Fault at over 2,000 feet below the surface. These deep
zones of mineralization are west of current mine infrastructure and
could be developed if the resources expand sufficiently.
Aggressive surface drilling programs will continue for the remainder of
the year at the 124 Zone (Principal area), 134 Zone, 146/East Mine Crown
Pillar, 160 Zone and South West zones to define a possible series of
open pits along the Casa Berardi Fault. Underground drilling will
continue to expand and refine the lower 118 and 123 zones near the
bottom of the mine.
More complete drill assay highlights from Casa Berardi can be found in
Table A at the end of the release and a presentation showing drill
intersection locations is available at the following: http://ir.hecla-mining.com/interactive/newlookandfeel/4130678/Hecla-Q3-2017-ExplorationUpdate.pdf.
Greens Creek – Alaska
At Greens Creek, drilling in the third quarter targeted the Deep 200
South, East Ore, Gallagher and the Upper Plate zones. Exploration
drilling on the Deep 200 South Zone extended the 200 South Bench
mineralization south of current resource. Drilling on the East Ore,
Gallagher and Upper Plate zones upgraded and expanded the known
resource. Strong assay results were also received from previous drilling
on the East Ore, Gallagher and Upper Plate zones.
Drilling of the East Ore Zone compares favorably to previously
modeled resource estimates at higher elevations and indicate expanded
resources to the south and at depth. Drilling intercepted 75.1 oz/ton
silver, 0.16 oz/ton gold, 5.32% zinc and 2.67% lead over 9.5 feet in an
area without previously identified resources and another exploration
drill hole intercepted 11.0 oz/ton silver, 0.13 oz/ton gold, 12.8% zinc
and 7.3% lead over 7.7 feet within an area of no previously identified
mineralization. Aggressive drilling of the East Ore Zone is planned to
continue well into 2018 with the goal of confirming reserves and
expanding the known resource.
Assays received for the Upper Plate Ore Zone further upgraded the
existing resource and included 75.2 oz/ton silver, 0.09 oz/ton gold, 6%
zinc and 3% lead over 5.4 feet. This Upper Plate mineralization is close
to underground mine infrastructure and only 300 feet below the mine
portal. Drilling of the Gallagher Zone identified new
mineralization between current resources and included 11.6 oz/ton
silver, 0.09 oz/ton gold, 5.2% zinc and 2.5% lead over 32.3 feet.
Surface drilling was completed on targets in the Gallagher, East Ore and
5250 zones. Drilling on the Gallagher Zone intersected
mineralized sheared veins and breccia intervals of up to 100 feet thick
containing higher-grade intervals of 1.5 to 4 feet wide that have up to
15% zinc and 4.0 oz/ton silver. This mineralized structure appears to be
the same Klaus Shear identified within the mine workings east of the
Gallagher fault. The mineralized Klaus Shear now extends 1,500 feet west
of the mine and over 3,000 feet north to south. Drilling successfully
intercepted the main mine horizon of the 5250 Zone over 2,000
feet south of the known resource showing promising alteration at the
contact. Assays from the drilling of a number of holes on the Gallagher
and 5250 zones are pending.
Underground drilling for the remainder of the year will focus on the
East Ore, Upper Plate, Deep 200 South and Gallagher zones.
More complete drill assay highlights from Greens Creek can be found in
Table A at the end of this release and a presentation showing drill
intersection locations is available at the following: http://ir.hecla-mining.com/interactive/newlookandfeel/4130678/Hecla-Q3-2017-ExplorationUpdate.pdf.
ABOUT HECLA
Founded in 1891,Hecla Mining Company (NYSE:HL)
is a leading low-cost U.S. silver producer with operating mines in
Alaska, Idaho and Mexico, and is a growing gold producer with an
operating mine in Quebec, Canada. The Company also has exploration and
pre-development properties in seven world-class silver and gold mining
districts in the U.S., Canada, and Mexico, and an exploration office and
investments in early-stage silver exploration projects in Canada.
Cautionary Statements Regarding Forward Looking Statements
Statements made or information provided in this news release that are
not historical facts are "forward-looking statements" within the meaning
of the Private Securities Litigation Reform Act of 1995 and
"forward-looking information" within the meaning of Canadian securities
laws. Words such as “may”, “will”, “should”, “expects”, “intends”,
“projects”, “believes”, “estimates”, “targets”, “anticipates” and
similar expressions are used to identify these forward-looking
statements. The material factors or assumptions used to develop such
forward-looking statements or forward-looking information include that
the Company’s plans for development and production will proceed as
expected and will not require revision as a result of risks or
uncertainties, whether known, unknown or unanticipated, to which the
Company’s operations are subject.
Forward-looking statements involve a number of risks and uncertainties
that could cause actual results to differ materially from those
projected, anticipated, expected or implied. These risks and
uncertainties include, but are not limited to, metals price volatility,
volatility of metals production and costs, litigation, regulatory and
environmental risks, operating risks, project development risks,
political risks, labor issues, ability to raise financing and
exploration risks and results. Refer to the Company's Form 10K and 10-Q
reports for a more detailed discussion of factors that may impact
expected future results. The Company undertakes no obligation and has no
intention of updating forward-looking statements other than as may be
required by law.
Cautionary Statements to Investors on Reserves and Resources
Reporting requirements in the United States for disclosure of mineral
properties are governed by the SEC and included in the SEC's Securities
Act Industry Guide 7, entitled “Description of Property by Issuers
Engaged or to be Engaged in Significant Mining Operations” (Guide 7).
However, the Company is also a “reporting issuer” under Canadian
securities laws, which require estimates of mineral resources and
reserves to be prepared in accordance with Canadian National Instrument
43-101 (NI 43-101). NI 43-101 requires all disclosure of estimates of
potential mineral resources and reserves to be disclosed in accordance
with its requirements. Such Canadian information is being included here
to satisfy the Company's “public disclosure” obligations under
Regulation FD of the SEC and to provide U.S. holders with ready access
to information publicly available in Canada.
Reporting requirements in the United States for disclosure of mineral
properties under Guide 7 and the requirements in Canada under NI 43-101
standards are substantially different. This document contains a summary
of certain estimates of the Company, not only of proven and probable
reserves within the meaning of Guide 7, which requires the preparation
of a “final” or “bankable” feasibility study demonstrating the economic
feasibility of mining and processing the mineralization using the
three-year historical average price for any reserve or cash flow
analysis to designate reserves and that the primary environmental
analysis or report be filed with the appropriate governmental authority,
but also of mineral resource and mineral reserve estimates estimated in
accordance with the definitional standards of the Canadian Institute of
Mining, Metallurgy and Petroleum referred to in NI 43-101. The terms
“measured resources”, “indicated resources,” and “inferred resources”
are Canadian mining terms as defined in accordance with NI 43-101. These
terms are not defined under Guide 7 and are not normally permitted to be
used in reports and registration statements filed with the SEC in the
United States, except where required to be disclosed by foreign law. The
term “resource” does not equate to the term “reserve”. Under Guide 7,
the material described herein as “indicated resources” and “measured
resources” would be characterized as “mineralized material” and is
permitted to be disclosed in tonnage and grade only, not ounces. The
category of “inferred resources” is not recognized by Guide 7. Investors
are cautioned not to assume that any part or all of the mineral deposits
in such categories will ever be converted into proven or probable
reserves. “Resources” have a great amount of uncertainty as to their
existence, and great uncertainty as to their economic and legal
feasibility. It cannot be assumed that all or any part of such a
“resource” will ever be upgraded to a higher category or will ever be
economically extracted. Investors are cautioned not to assume that all
or any part of a “resource” exists or is economically or legally
mineable. Investors are also especially cautioned that the mere fact
that such resources may be referred to in ounces of silver and/or gold,
rather than in tons of mineralization and grades of silver and/or gold
estimated per ton, is not an indication that such material will ever
result in mined ore which is processed into commercial silver or gold.
Qualified Person (QP) Pursuant to Canadian National Instrument 43-101
Dean McDonald, PhD. P.Geo., Senior Vice President - Exploration of Hecla
Mining Company, who serves as a Qualified Person under National
Instrument 43-101, supervised the preparation of the scientific and
technical information concerning Hecla’s mineral projects in this news
release. Information regarding data verification, surveys and
investigations, quality assurance program and quality control measures
and a summary of sample, analytical or testing procedures for the Greens
Creek Mine are contained in a technical report prepared for Hecla titled
“Technical Report for the Greens Creek Mine, Juneau, Alaska, USA”
effective date March 28, 2013, and for the Lucky Friday Mine are
contained in a technical report prepared for Hecla titled “Technical
Report on the Lucky Friday Mine Shoshone County, Idaho, USA” effective
date April 2, 2014, for the Casa Berardi Mine are contained in a
technical report prepared for Hecla titled "Technical Report on the
Mineral Resource and Mineral Reserve Estimate for the Casa Berardi Mine,
Northwestern Quebec, Canada" effective date March 31, 2014 (the "Casa
Berardi Technical Report"), and for the San Sebastian Mine are contained
in a technical report prepared for Hecla titled "Technical Report for
the San Sebastian Ag-Au Property, Durango, Mexico" effective date
September 8, 2015. Also included in these three technical reports is a
description of the key assumptions, parameters and methods used to
estimate mineral reserves and resources and a general discussion of the
extent to which the estimates may be affected by any known
environmental, permitting, legal, title, taxation, socio-political,
marketing or other relevant factors. Copies of these technical reports
are available under Hecla's profile on SEDAR at www.sedar.com.
Table A - Assay Results – Q3 2017 |
San Sebastian (Mexico) |
Zone |
| Drill Hole Number |
| Sample From (ft) |
| Sample To (ft) |
| Width (feet) |
| True Width (feet) |
| Gold (oz/ton) |
| Silver (oz/ton) |
| Zinc (%) |
| Lead (%) |
| Copper (%) |
Middle Vein |
| SS-1354 |
| 987.4 |
| 996.3 |
| 9.0 |
| 5.4 |
| 0.07 |
| 12.0 |
| 8.8 |
| 5.86 |
| 4.36 |
Middle Vein |
| SS-1366 |
| 685.5 |
| 698.0 |
| 12.5 |
| 12.5 |
| 0.01 |
| 6.9 |
| 0.0 |
| 0.01 |
| 0.01 |
Middle Vein |
| SS-1369 |
| 531.5 |
| 547.1 |
| 15.6 |
| 14.1 |
| 0.07 |
| 5.2 |
| 0.4 |
| 0.38 |
| 0.09 |
Middle Vein |
| SS-1370 |
| 343.7 |
| 347.5 |
| 3.8 |
| 3.5 |
| 0.26 |
| 54.9 |
| 0.2 |
| 0.19 |
| 0.04 |
Middle Vein |
| SS-1371 |
| 717.5 |
| 731.5 |
| 13.9 |
| 11.0 |
| 0.04 |
| 4.0 |
| 0.1 |
| 0.04 |
| 0.02 |
Middle Vein |
| SS-1373 |
| 454.4 |
| 462.1 |
| 7.7 |
| 6.6 |
| 0.10 |
| 13.1 |
| 0.7 |
| 0.68 |
| 0.25 |
Middle Vein |
| SS-1374 |
| 868.0 |
| 873.3 |
| 5.3 |
| 5.0 |
| 0.07 |
| 2.7 |
| 0.0 |
| 0.02 |
| 0.02 |
Middle Vein |
| SS-1388 |
| 523.0 |
| 528.3 |
| 5.4 |
| 4.4 |
| 0.19 |
| 41.3 |
| 0.2 |
| 0.14 |
| 0.09 |
Middle Vein |
| SS-1391 |
| 531.7 |
| 538.0 |
| 6.3 |
| 5.4 |
| 0.19 |
| 17.9 |
| 0.1 |
| 0.06 |
| 0.04 |
Middle Vein |
| SS-1392 |
| 620.7 |
| 631.4 |
| 10.7 |
| 6.8 |
| 0.02 |
| 5.5 |
| 0.1 |
| 0.14 |
| 0.07 |
Middle Vein |
| SS-1396 |
| 598.3 |
| 603.1 |
| 4.7 |
| 4.0 |
| 0.02 |
| 4.7 |
| 0.1 |
| 0.07 |
| 0.07 |
Middle Vein |
| SS-1399 |
| 574.4 |
| 576.6 |
| 2.2 |
| 2.0 |
| 0.06 |
| 8.7 |
| 0.0 |
| 0.02 |
| 0.02 |
Middle Vein |
| SS-1410 |
| 672.3 |
| 673.1 |
| 0.7 |
| 2.2 |
| 0.38 |
| 9.6 |
| 0.0 |
| 0.01 |
| 0.00 |
Middle Vein |
| SS-1419 |
| 992.3 |
| 999.7 |
| 7.4 |
| 4.0 |
| 0.02 |
| 9.5 |
| 5.2 |
| 1.70 |
| 2.86 |
Middle Vein |
| SS-1421 |
| 1200.2 |
| 1203.5 |
| 3.3 |
| 2.0 |
| 0.00 |
| 12.8 |
| 14.0 |
| 7.88 |
| 3.65 |
E. Middle Vein |
| SS-1355 |
| 579.6 |
| 587.7 |
| 8.0 |
| 8.0 |
| 0.05 |
| 7.6 |
| 0.0 |
| 0.01 |
| 0.01 |
E. Middle Vein |
| SS-1359 |
| 641.9 |
| 647.5 |
| 5.5 |
| 5.5 |
| 0.03 |
| 6.1 |
| 0.0 |
| 0.01 |
| 0.01 |
E. Middle Vein |
| SS-1363 |
| 582.5 |
| 585.9 |
| 3.4 |
| 3.4 |
| 0.14 |
| 4.4 |
| 0.0 |
| 0.01 |
| 0.01 |
E. Middle Vein |
| SS-1403 |
| 312.1 |
| 316.8 |
| 4.7 |
| 4.7 |
| 0.06 |
| 3.3 |
| 0.0 |
| 0.00 |
| 0.00 |
E. Middle Vein |
| SS-1413 |
| 322.5 |
| 324.7 |
| 2.2 |
| 2.2 |
| 0.38 |
| 9.6 |
| 0.0 |
| 0.00 |
| 0.00 |
W. Francine |
| SS-1401 |
| 931.3 |
| 935.3 |
| 4.0 |
| 3.6 |
| 0.01 |
| 28.5 |
| 13.5 |
| 9.10 |
| 5.58 |
W. Francine |
| SS-1412 |
| 804.8 |
| 808.9 |
| 4.1 |
| 3.4 |
| 0.01 |
| 19.7 |
| 13.3 |
| 12.11 |
| 3.30 |
W. Francine |
| SS-1427 |
| 991.5 |
| 1003.4 |
| 12.0 |
| 6.2 |
| 0.01 |
| 6.2 |
| 3.9 |
| 2.79 |
| 1.92 |
| Includes |
| 996.5 |
| 1002.2 |
| 5.7 |
| 3.0 |
| 0.01 |
| 11.0 |
| 6.8 |
| 4.33 |
| 3.39 |
E. Francine |
| SS-1348 |
| 723.4 |
| 736.3 |
| 12.8 |
| 12.8 |
| 0.00 |
| 14.8 |
| 0.0 |
| 0.03 |
| 0.02 |
E. Francine |
| SS-1352 |
| 811.9 |
| 815.0 |
| 3.1 |
| 3.1 |
| 0.03 |
| 12.4 |
| 0.0 |
| 0.03 |
| 0.01 |
Professor |
| SS-1401 |
| 405.2 |
| 411.6 |
| 6.4 |
| 5.8 |
| 0.15 |
| 45.7 |
| 1.3 |
| 0.69 |
| 0.78 |
Casa Berardi (Quebec) |
Zone |
| Drill Hole Number |
| Drill Hole Section |
| Drill Hole Azm/Dip |
| Sample From |
| Sample To |
| True Width (feet) |
| Gold (oz/ton) |
| Depth From Mine Surface (feet) |
Lower 118 - 950-970 Area |
| CBP-0950-027 |
| 12124 |
| 180/-49 |
| 357.6 |
| 370.7 |
| 12.8 |
| 0.32 |
| -3150.9 |
118 |
| CBP-0950-028 |
| 12124 |
| 180/-39 |
| 364.2 |
| 374.0 |
| 9.8 |
| 0.54 |
| -3124.7 |
118 |
| CBP-0950-029 |
| 12125 |
| 181/-1 |
| 363.2 |
| 375.3 |
| 12.0 |
| 0.51 |
| -3086.6 |
118 |
| CBP-0950-030 |
| 12124 |
| 181/-23 |
| 380.6 |
| 400.3 |
| 18.0 |
| 0.51 |
| -3214.5 |
118 |
| CBP-0950-031 |
| 12134 |
| 174/-24 |
| 375.3 |
| 410.1 |
| 33.8 |
| 0.67 |
| -3213.6 |
118 |
| CBP-0950-032 |
| 12138 |
| 172/-15 |
| 372.4 |
| 400.9 |
| 28.2 |
| 0.30 |
| -3185.2 |
118 |
| CBP-0950-037 |
| 12095 |
| 196/-11 |
| 350.4 |
| 365.5 |
| 14.7 |
| 0.27 |
| -3138.4 |
118 |
| CBP-0950-039 |
| 12075 |
| 204/-13 |
| 369.1 |
| 388.8 |
| 17.7 |
| 0.29 |
| -3146.4 |
118 |
| CBP-0970-017 |
| 11967 |
| 202/-3 |
| 93.2 |
| 114.8 |
| 19.5 |
| 0.26 |
| -3178.7 |
118 |
| CBP-0970-019 |
| 11969 |
| 202/-36 |
| 111.9 |
| 132.9 |
| 14.9 |
| 0.21 |
| -3095.9 |
118 |
| CBP-0970-020 |
| 11986 |
| 186/-20 |
| 111.5 |
| 128.0 |
| 14.1 |
| 0.30 |
| -3193.9 |
118 |
| CBP-0970-021 |
| 11984 |
| 185/-5 |
| 98.4 |
| 114.8 |
| 14.8 |
| 0.23 |
| -3182.2 |
Lower 118 - 990 Area |
| CBP-0671 |
| 11948 |
| 1/-40 |
| 469.5 |
| 485.9 |
| 8.2 |
| 0.21 |
| -3519.8 |
118 |
| CBP-0673 |
| 11966 |
| 0/-26 |
| 543.3 |
| 554.1 |
| 10.8 |
| 0.20 |
| -3447.1 |
Lower 123 - 550-590 Area |
| CBP-0550-136 |
| 12361 |
| 140/-50 |
| 27.2 |
| 35.1 |
| 1.4 |
| 3.38 |
| -1805.1 |
123 |
| CBP-0550-141 |
| 12367 |
| 90/-30 |
| 15.1 |
| 38.1 |
| 6.4 |
| 1.27 |
| -1760.7 |
123 |
| CBP-0550-142 |
| 1254 |
| 270/-90 |
| 10.8 |
| 26.2 |
| 5.1 |
| 1.20 |
| -1801.3 |
123 |
| CBP-0570-002 |
| 12361 |
| 183/-18 |
| 60.4 |
| 72.2 |
| 10.4 |
| 0.63 |
| -1885.9 |
123 |
| CBP-0570-002 |
| 12360 |
| 183/-18 |
| 83.7 |
| 95.1 |
| 9.9 |
| 0.90 |
| -1892.1 |
123 |
| CBP-0570-003 |
| 12360 |
| 202/-20 |
| 19.4 |
| 44.0 |
| 18.0 |
| 0.84 |
| -1875.9 |
123 |
| CBP-0590-004 |
| 12441 |
| 203/-20 |
| 189.3 |
| 226.4 |
| 24.0 |
| 0.14 |
| -2000.3 |
123 |
| CBP-0590-005 |
| 12451 |
| 203/-35 |
| 111.5 |
| 144.4 |
| 14.5 |
| 0.22 |
| -2006.1 |
Lower 123 - 950 Area |
| CBP-0950-041 |
| 12290 |
| 180/4 |
| 100.4 |
| 177.5 |
| 74.8 |
| 0.19 |
| -3105.4 |
123 |
| CBP-0950-042 |
| 12290 |
| 180/22 |
| 105.0 |
| 158.8 |
| 51.7 |
| 0.29 |
| -3066.5 |
123 |
| CBP-0950-042 |
| 12290 |
| 180/22 |
| 180.4 |
| 190.3 |
| 9.8 |
| 0.27 |
| -3045.5 |
123 |
| CBP-0950-043 |
| 12290 |
| 180/-15 |
| 124.7 |
| 196.9 |
| 58.8 |
| 0.37 |
| -3160.3 |
123 |
| CBP-0950-043 |
| 12289 |
| 180/-15 |
| 210.0 |
| 239.5 |
| 25.6 |
| 0.29 |
| -3174.3 |
123 |
| CBP-0950-044 |
| 12290 |
| 180/-26 |
| 181.8 |
| 232.9 |
| 36.1 |
| 0.42 |
| -3209.2 |
123 |
| CBP-0950-044 |
| 12289 |
| 180/-26 |
| 242.8 |
| 255.6 |
| 9.9 |
| 0.32 |
| -3226.0 |
123 |
| CBP-0950-045 |
| 12290 |
| 180/39 |
| 98.4 |
| 150.6 |
| 45.3 |
| 0.38 |
| -3038.2 |
123 |
| CBP-0950-046 |
| 12303 |
| 180/36 |
| 102.0 |
| 130.2 |
| 27.1 |
| 0.45 |
| -3049.8 |
123 |
| CBP-0950-047 |
| 12303 |
| 180/17 |
| 88.6 |
| 137.8 |
| 49.0 |
| 0.43 |
| -3086.0 |
123 |
| CBP-0950-048 |
| 12303 |
| 180/-4 |
| 78.7 |
| 157.5 |
| 73.0 |
| 0.32 |
| -3127.5 |
123 |
| CBP-0950-050 |
| 12303 |
| 180/-37 |
| 4.9 |
| 21.3 |
| 11.5 |
| 0.33 |
| -3131.9 |
Upper Principal 124 - 190-330 Area |
| CBP-0190-003 |
| 12645 |
| 181/18 |
| 96.8 |
| 112.2 |
| 15.1 |
| 0.88 |
| -582.1 |
124 |
| CBP-0190-003 |
| 12646 |
| 181/18 |
| 127.3 |
| 143.0 |
| 15.4 |
| 0.49 |
| -572.5 |
124 |
| CBP-0210-023 |
| 12392 |
| 357/0 |
| 187.0 |
| 196.9 |
| 9.6 |
| 0.24 |
| -684.0 |
124 |
| CBP-0210-027 |
| 12407 |
| 356/29 |
| 141.4 |
| 152.9 |
| 9.8 |
| 0.40 |
| -612.9 |
124 |
| CBP-0210-028 |
| 12409 |
| 357/18 |
| 131.2 |
| 141.1 |
| 9.3 |
| 0.32 |
| -644.1 |
124 |
| CBP-0210-030 |
| 12409 |
| 357/45 |
| 173.9 |
| 196.9 |
| 17.1 |
| 0.26 |
| -559.7 |
124 |
| CBP-0210-031 |
| 12420 |
| 358/39 |
| 170.9 |
| 176.5 |
| 4.3 |
| 0.38 |
| -576.4 |
124 |
| CBP-0210-033 |
| 12420 |
| 358/12 |
| 91.9 |
| 137.5 |
| 9.5 |
| 0.43 |
| -659.7 |
124 |
| CBP-0210-034 |
| 12432 |
| 5/25 |
| 110.2 |
| 125.7 |
| 12.1 |
| 0.26 |
| -632.8 |
124 |
| CBP-0210-037 |
| 12445 |
| 26/21 |
| 95.1 |
| 108.3 |
| 9.3 |
| 0.29 |
| -648.0 |
124 |
| CBP-0330-037 |
| 12540 |
| 117/-23 |
| 308.4 |
| 315.0 |
| 2.6 |
| 0.28 |
| -1167.7 |
124 |
| CBP-0330-042 |
| 12457 |
| 184/-19 |
| 769.4 |
| 787.4 |
| 16.8 |
| 0.23 |
| -1243.8 |
124 |
| CBP-0330-042 |
| 12455 |
| 184/-19 |
| 835.6 |
| 846.5 |
| 10.1 |
| 0.21 |
| -1255.3 |
124 |
| CBP-0330-042 |
| 12454 |
| 184/-19 |
| 869.4 |
| 890.7 |
| 20.1 |
| 0.25 |
| -1262.3 |
Lower Inter |
| CBS-17-801 |
| 12445 |
| 350/-49 |
| 195.6 |
| 223.8 |
| 19.7 |
| 0.19 |
| -358.0 |
| CBS-17-802 |
| 12455 |
| 350/-59 |
| 462.2 |
| 473.3 |
| 8.3 |
| 0.18 |
| -388.0 |
Surface Principal (124) |
| CBP-0330-058 |
| 12445 |
| 350/-49 |
| 1195.6 |
| 1225.8 |
| 19.7 |
| 0.24 |
| -2358.0 |
| CBP-0330-062 |
| 12455 |
| 350/-59 |
| 1218.2 |
| 1227.3 |
| 6.2 |
| 0.28 |
| 2388.0 |
Surface 134 Pit |
| CBF-134-014 |
| 13291 |
| 356/-45 |
| 213.3 |
| 259.2 |
| 43.0 |
| 0.07 |
| -170.1 |
134 |
| CBF-134-025 |
| 13213 |
| 360/-65 |
| 274.0 |
| 292.0 |
| 13.5 |
| 0.14 |
| -254.4 |
134 |
| CBF-134-032 |
| 13196 |
| 8/-48 |
| 689.0 |
| 721.8 |
| 32.3 |
| 0.10 |
| -458.0 |
134 |
| CBF-134-049 |
| 13287 |
| 352/-47 |
| 164.0 |
| 277.9 |
| 106.0 |
| 0.06 |
| -156.3 |
134 |
| CBF-134-050 |
| 13273 |
| 360/-55 |
| 689.0 |
| 710.6 |
| 16.3 |
| 0.21 |
| -545.5 |
134 |
| CBF-134-051 |
| 12309 |
| 352/-60 |
| 697.8 |
| 721.8 |
| 23.7 |
| 0.07 |
| -569.8 |
Surface EMCP Pit |
| CBF-148-021 |
| 14614 |
| 345/-59 |
| 216.5 |
| 300.9 |
| 61.4 |
| 0.09 |
| -230.6 |
148 |
| CBF-148-022 |
| 14596 |
| 360/-64 |
| 206.7 |
| 221.5 |
| 10.0 |
| 0.11 |
| -199.7 |
146 |
| CBF-148-033 |
| 14499 |
| 350/-49 |
| 462.6 |
| 479.3 |
| 11.0 |
| 0.14 |
| -346.1 |
146 |
| CBF-148-035 |
| 14519 |
| 360/-51 |
| 193.6 |
| 219.8 |
| 19.3 |
| 0.16 |
| -160.5 |
146 |
| CBF-148-035 |
| 14517 |
| 360/-51 |
| 328.1 |
| 344.5 |
| 11.7 |
| 0.16 |
| -259.6 |
146 |
| CBF-148-036 |
| 14519 |
| 360/-60 |
| 221.5 |
| 265.7 |
| 27.1 |
| 0.11 |
| -211.8 |
146 |
| CBF-148-042 |
| 14474 |
| 360/-55 |
| 339.6 |
| 369.1 |
| 19.1 |
| 0.13 |
| -295.5 |
Surface 160 Pit |
| CBF-160-066 |
| 15808 |
| 360/-70 |
| 429.8 |
| 446.2 |
| 14.1 |
| 0.08 |
| -415.7 |
160 |
| CBF-160-070 |
| 15917 |
| 360/-53 |
| 210.0 |
| 510.5 |
| 149.3 |
| 0.10 |
| -274.8 |
160 |
| CBF-160-070 |
| 15917 |
| 360/-53 |
| 574.1 |
| 610.2 |
| 29.6 |
| 0.12 |
| -446.1 |
Surface - SW-NW area |
| CBS-17-756 |
| 10470 |
| 360/-55 |
| 295.3 |
| 337.9 |
| 23.0 |
| 0.07 |
| -278.9 |
SW-NW |
| CBS-17-775 |
| 10620 |
| 360/-55 |
| 639.8 |
| 816.9 |
| 105.0 |
| 0.05 |
| -492.1 |
NW |
| CBS-17-775 |
| 10620 |
| 360/-55 |
| 664.4 |
| 677.5 |
| 9.5 |
| 0.18 |
| -492.1 |
NW |
| CBS-17-778 |
| 10680 |
| 180/-54 |
| 482.3 |
| 551.2 |
| 45.9 |
| 0.08 |
| -419.9 |
NW |
| CBS-17-799 |
| 10665 |
| 180/-45 |
| 331.4 |
| 388.1 |
| 42.7 |
| 0.09 |
| -262.5 |
NW |
| CBS-17-799 |
| 10665 |
| 180/-45 |
| 340.2 |
| 353.3 |
| 9.8 |
| 0.23 |
| -262.5 |
Greens Creek (Alaska) |
Zone |
| Drill Hole Number |
| Drill Hole Azm/Dip |
| Sample From |
| Sample To |
| True Width (feet) |
| Silver (oz/ton) |
| Gold (oz/ton) |
| Zinc (%) |
| Lead (%) |
| Depth From Mine Portal (feet) |
East Ore |
| GC4609 |
| 63/-35 |
| 353.00 |
| 357.50 |
| 3.9 |
| 29.42 |
| 0.07 |
| 1.76 |
| 0.66 |
| 474 |
|
| GC4612 |
| 63/22.5 |
| 442.00 |
| 446.00 |
| 3.2 |
| 57.01 |
| 0.00 |
| 6.89 |
| 2.71 |
| 819 |
|
| GC4615 |
| 63/-16 |
| 364.00 |
| 367.00 |
| 3.0 |
| 26.60 |
| 0.34 |
| 5.78 |
| 2.68 |
| 580 |
|
| GC4618 |
| 63/27 |
| 559.00 |
| 599.00 |
| 27.3 |
| 6.65 |
| 0.12 |
| 10.53 |
| 3.17 |
| 935 |
|
| GC4627 |
| 63/-78 |
| 537.00 |
| 541.80 |
| 4.6 |
| 6.39 |
| 0.27 |
| 22.10 |
| 6.80 |
| 146 |
|
| GC4631 |
| 63/26 |
| 538.60 |
| 575.70 |
| 27.6 |
| 8.88 |
| 0.09 |
| 11.02 |
| 2.88 |
| 809 |
|
| GC4635 |
| 63/18 |
| 515.50 |
| 520.50 |
| 3.5 |
| 5.46 |
| 0.10 |
| 11.35 |
| 2.20 |
| 835 |
|
| GC4636 |
| 63/-77 |
| 542.90 |
| 548.30 |
| 4.7 |
| 11.51 |
| 0.10 |
| 21.72 |
| 5.79 |
| 143 |
|
| GC4637 |
| 63/29 |
| 633.60 |
| 652.00 |
| 12.8 |
| 9.64 |
| 0.42 |
| 16.96 |
| 3.70 |
| 994 |
|
| GC4640 |
| 63/-88 |
| 533.50 |
| 535.00 |
| 1.5 |
| 18.94 |
| 0.09 |
| 30.60 |
| 11.30 |
| 139 |
|
| GC4642 |
| 261/-83 |
| 539.00 |
| 547.00 |
| 7.8 |
| 35.44 |
| 0.16 |
| 7.78 |
| 2.20 |
| 81 |
|
| GC4652 |
| 57/-85 |
| 546.00 |
| 549.10 |
| 3.1 |
| 50.95 |
| 0.06 |
| 7.19 |
| 1.35 |
| 130 |
|
| GC4657 |
| 63/24 |
| 546.20 |
| 554.45 |
| 6.3 |
| 7.54 |
| 0.14 |
| 16.56 |
| 4.82 |
| 906 |
|
|
|
|
|
| 564.45 |
| 574.45 |
| 7.7 |
| 11.22 |
| 0.13 |
| 12.79 |
| 1.13 |
| 912 |
|
| GC4658 |
| 63/17 |
| 482.60 |
| 508.00 |
| 20.5 |
| 29.66 |
| 0.09 |
| 12.47 |
| 7.31 |
| 824 |
|
| GC4661 |
| 63/8 |
| 439.50 |
| 460.50 |
| 15.4 |
| 22.20 |
| 0.21 |
| 8.32 |
| 2.87 |
| 739 |
|
| GC4662 |
| 63/-6 |
| 376.70 |
| 381.60 |
| 4.6 |
| 10.12 |
| 0.00 |
| 15.36 |
| 4.90 |
| 195 |
|
| GC4664 |
| 63/-47 |
| 333.20 |
| 357.40 |
| 24.1 |
| 17.87 |
| 0.11 |
| 6.84 |
| 1.77 |
| 429 |
|
| GC4665 |
| 63/30 |
| 626.00 |
| 640.00 |
| 8.8 |
| 50.43 |
| 0.39 |
| 4.55 |
| 2.37 |
| 1005 |
|
|
|
|
|
| 662.00 |
| 666.80 |
| 4.2 |
| 14.86 |
| 0.33 |
| 3.48 |
| 0.95 |
| 1023 |
|
|
|
|
|
| 702.00 |
| 710.80 |
| 7.8 |
| 9.53 |
| 0.76 |
| 15.59 |
| 3.80 |
| 1038 |
|
| GC4668 |
| 63/25 |
| 569.00 |
| 576.00 |
| 4.9 |
| 6.04 |
| 0.09 |
| 8.94 |
| 2.91 |
| 926 |
|
| GC4670 |
| 63/18 |
| 519.50 |
| 525.70 |
| 4.4 |
| 10.00 |
| 0.08 |
| 9.82 |
| 2.51 |
| 865 |
|
| GC4674 |
| 63/-17 |
| 368.00 |
| 381.20 |
| 13.1 |
| 16.55 |
| 0.15 |
| 8.79 |
| 2.67 |
| 588 |
|
| GC4675 |
| 63/-44 |
| 342.50 |
| 355.40 |
| 12.9 |
| 9.64 |
| 0.11 |
| 14.45 |
| 6.61 |
| 447 |
|
|
|
|
|
| 395.00 |
| 404.50 |
| 9.5 |
| 75.14 |
| 0.16 |
| 5.32 |
| 2.67 |
| 411 |
|
| GC4645 |
| 241/-47 |
| 672.00 |
| 679.50 |
| 6.5 |
| 10.99 |
| 0.02 |
| 12.79 |
| 7.31 |
| 174 |
|
|
|
|
|
| 712.90 |
| 716.80 |
| 3.4 |
| 13.91 |
| 0.01 |
| 6.35 |
| 2.57 |
| 146 |
Upper Plate |
| GC4620 |
| 243/79 |
| 462.70 |
| 466.30 |
| 3.5 |
| 45.89 |
| 0.01 |
| 0.87 |
| 0.42 |
| 266 |
|
| GC4625 |
| 63/85 |
| 451.20 |
| 457.00 |
| 5.8 |
| 23.19 |
| 0.01 |
| 7.46 |
| 5.17 |
| 265 |
|
| GC4638 |
| 39/76 |
| 488.50 |
| 493.50 |
| 5.0 |
| 14.69 |
| 0.05 |
| 2.33 |
| 1.07 |
| 288 |
|
|
|
|
|
| 508.60 |
| 513.00 |
| 4.3 |
| 27.73 |
| 0.04 |
| 14.55 |
| 3.63 |
| 314 |
|
| GC4643 |
| 4/83 |
| 479.40 |
| 484.80 |
| 5.4 |
| 75.23 |
| 0.09 |
| 5.97 |
| 2.97 |
| 296 |
|
|
|
|
|
| 527.30 |
| 531.50 |
| 4.2 |
| 12.28 |
| 0.02 |
| 16.79 |
| 4.01 |
| 343 |
|
| GC4647 |
| 293/83 |
| 460.40 |
| 465.40 |
| 5.0 |
| 9.96 |
| 0.00 |
| 5.16 |
| 3.26 |
| 275 |
|
|
|
|
|
| 472.00 |
| 476.00 |
| 4.0 |
| 40.38 |
| 0.04 |
| 6.03 |
| 2.66 |
| 285 |
|
| GC4651 |
| 265/75 |
| 482.50 |
| 487.70 |
| 5.0 |
| 20.67 |
| 0.02 |
| 2.17 |
| 0.96 |
| 278 |
|
|
|
|
|
| 544.00 |
| 549.50 |
| 5.3 |
| 10.39 |
| 0.04 |
| 22.80 |
| 5.15 |
| 338 |
|
| GC4660 |
| 281/72 |
| 533.00 |
| 539.10 |
| 5.8 |
| 21.75 |
| 0.00 |
| 4.26 |
| 3.01 |
| 322 |
|
|
|
|
|
| 590.80 |
| 595.50 |
| 4.4 |
| 12.04 |
| 0.00 |
| 22.49 |
| 7.13 |
| 375 |
|
| GC4663 |
| 303/77 |
| 505.00 |
| 511.90 |
| 6.8 |
| 35.99 |
| 0.01 |
| 1.58 |
| 0.74 |
| 307 |
|
|
|
|
|
| 573.00 |
| 578.00 |
| 4.7 |
| 11.36 |
| 0.00 |
| 15.99 |
| 8.10 |
| 375 |
|
| GC4669 |
| 13/76 |
| 508.00 |
| 514.90 |
| 6.7 |
| 19.04 |
| 0.09 |
| 3.40 |
| 1.81 |
| 310 |
|
|
|
|
|
| 545.50 |
| 555.00 |
| 9.4 |
| 59.56 |
| 0.07 |
| 12.68 |
| 6.11 |
| 347 |
Gallagher |
| GC4680 |
| 305/69 |
| 21.70 |
| 24.70 |
| 2.6 |
| 10.52 |
| 0.02 |
| 8.85 |
| 4.08 |
| -678 |
|
| GC4681 |
| 281/72 |
| 30.50 |
| 35.60 |
| 5.0 |
| 14.03 |
| 0.01 |
| 10.64 |
| 5.33 |
| -670 |
|
| GC4683 |
| 241/-47 |
| 41.20 |
| 42.70 |
| 1.5 |
| 14.46 |
| 0.05 |
| 7.17 |
| 2.89 |
| -661 |
|
| GC4684 |
| 163/-47 |
|
|
|
|
| 32.30 |
| 11.60 |
| 0.09 |
| 5.24 |
| 2.47 |
| -591 |
|
| GC4685 |
| 293/83 |
| 52.00 |
| 54.00 |
| 2.0 |
| 98.41 |
| 1.11 |
| 8.98 |
| 4.00 |
| -651 |
View source version on businesswire.com: http://www.businesswire.com/news/home/20171102005548/en/
Contacts:
Hecla Mining Company
Mike Westerlund, 800-HECLA91 (800-432-5291)
Vice
President, Investor Relations
hmc-info@hecla-mining.com
www.hecla-mining.com
Source: Hecla Mining Company
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