New discoveries at San Sebastian
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 West Middle 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 East
Middle 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-SW Zone 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 Inter
Zone 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 HoleNumber
SampleFrom (ft)
Sample To (ft)
Width(feet)
TrueWidth(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 HoleNumber
Drill HoleSection
Drill Hole
Azm/Dip
SampleFrom
SampleTo
True Width (feet)
Gold(oz/ton)
Depth From Mine Surface
(feet)
Lower 118 - 950-970Area
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 - 550-590Area
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 HoleNumber
DrillHoleAzm/Dip
SampleFrom
SampleTo
TrueWidth(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/
Hecla Mining CompanyMike Westerlund, 800-HECLA91
(800-432-5291)Vice President, Investor
Relationshmc-info@hecla-mining.comwww.hecla-mining.com
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