Blackrock Silver Extends Silver and Gold to Northwest at Tonopah West The NW Stepout Drill Program Extends Mineralization Another 600 Metres to the Northwest Along the Projection of the Denver Vein System, and Identifies Mineralized Intrusive
Blackrock Silver Extends Silver and Gold to
Northwest at Tonopah West
The NW Stepout Drill Program Extends Mineralization Another
600 Metres to the Northwest Along the Projection of the
Denver Vein System, and Identifies Mineralized Intrusive
Complex Target
Vancouver, British Columbia--(Newsfile Corp. - September 23, 2026) -
Blackrock Silver Corp. (TSXV:
BRC) (OTCQX: BKRRF) (FSE: AHZ0)
("
Blackrock
" or the "
Company
") announces the first tranche
of results from its fully-funded Eastern Expansion Program (as defined below) and NW Step Out
Program (as defined below) (see February 25, 2026 news release) on its 100% owned Tonopah West
project ("
Tonopah West
") located in Nye and Esmeralda Counties, Nevada, United States.
PROGRAM HIGHLIGHTS:
600-metre northwest extension: NW Step Out Program drilling extends the inner
mineralized high-grade corridor an additional 600 metres northwest along the projection
of the Denver vein system. Drillholes TXC26-192A, -199, -200 and -201 confirm the
extension.
New intrusive target: The Denver vein set is dilating toward a newly identified intrusive
complex. This creates a priority exploration target where silver and gold may be
concentrated.
Mineralized granodiorite: TXC26-190 intersected a mineralized granodiorite returning up
to 28 g/t silver and 0.29 g/t gold. It bottomed at 1,383 metres in altered Palmetto Group
limestones carrying elevated gold, arsenic and antimony at the volcanic contact.
Eastern Expansion Program drilling adds to the resource area: Drilling at DPB South
returned high-grade silver and gold between the Pittsburg-Monarch and McKane fault
systems, expanding beyond the March 2026 mineral resource.
More than 18,100 metres drilled: The fully funded programs have completed 8,074 metres
of RC pre-collars in 35 holes and 10,032 metres of core tails in 31 holes.
More results to come: Assays for 12 drillholes are pending and drilling is ongoing. Three
additional core holes from surface are being considered to follow up the NW Step Out
Program results.
DRILL HIGHLIGHTS:
TXC26-200: 0.49 m of 1,096.0 g/t AgEq (797.0 g/t Ag, 2.77 g/t Au) from 673.00 m. The hole
also returned 0.70 m of 343.6 g/t AgEq from 707.66 m and 0.76 m of 318.5 g/t AgEq from
840.79 m.
TXC26-192A: 1.98 m of 343.0 g/t AgEq (179.5 g/t Ag, 1.51 g/t Au) from 633.83 m, including
0.43 m of 1,114.4 g/t AgEq (553.0 g/t Ag, 5.20 g/t Au). The hole also cut 3.05 m of 132.9 g/t
AgEq from 590.25 m, and 0.43 m of 638.7 g/t AgEq from 597.29 m.
TXC26-184: 0.76 m of 1,036.6 g/t AgEq (431.0 g/t Ag, 5.61 g/t Au) from 296.11 m, plus 0.40
m of 877.1 g/t AgEq from 305.29 m.
TXC26-199: 1.22 m of 294.5 g/t AgEq (129.3 g/t Ag, 1.53 g/t Au) from 765.96 m.
Assays for the Company's north-west step out program at Tonopah West (the "
NW Step Out Program
")
indicate the inner mineralized corridor continues to the northwest with drillholes TXC26-192A, -199, -200
and TXC26-201 confirming mineralization has been extended an additional 600 metres.
The Denver
vein set is dilating toward an area where an intrusive complex has been identified in drillholes TXC26-
190 and TXC22-051.
In TXC22-051, a Cretaceous-age granite (107Ma) was encountered. The USGS completed the age
dating.
In drillhole TXC26-190, Blackrock encountered a younger mineralized granodiorite which
returned elevated gold and silver up to 28 g/t silver and 0.29 g/t gold.
The Denver vein system is heading
in the direction of the intrusive complex and may hold a clue to the origins of the Tonopah silver and gold
source.
The Denver vein system is much younger than the granite at 20 Ma.
This structural setting may
promote a priority exploration target where the dilatant zone around the intrusive that may concentrate
silver and gold.
Table 1 summarizes the significant results of the Eastern Expansion Program and NW Step Out
Program using a cut-off grade of 100 grams per tonne silver equivalent.
Table 1: Eastern Expansion Program and NW Step Out Program Significant Results Using a 100 g/t
AgEq Cut-off Grade
Drillhole ID
Drill Program
Hole Type
From
(m)
To
(m)
Drill Interval
(m)
Ag gram
per Tonne
Au gram
per Tonne
AgEq gram
per Tonne
TXC26-180
E Extension
RC/Core
436.63
438.61
1.98
74.5
0.646
144.2
TXC26-184
E Extension
RC/Core
281.33
281.82
0.49
93.6
0.961
197.4
TXC26-184
E Extension
RC/Core
284.2
284.59
0.40
128
1.74
315.8
TXC26-184
E Extension
RC/Core
296.11
296.88
0.76
431
5.61
1,036.60
TXC26-184
E Extension
RC/Core
305.29
305.69
0.40
387
4.54
877.1
TXC26-185
E Extension
RC/Core
252.22
252.59
0.37
157
1.86
357.8
TXC26-185
E Extension
RC/Core
258.81
259.23
0.43
53
0.784
137.6
TXC26-186
E Extension
RC/Core
478.84
479.15
0.31
75.3
0.785
160.1
TXC26-186
E Extension
RC/Core
491.1
491.64
0.55
126
1.28
264.2
TXC26-191
NW Stepout
RC/Core
648.16
648.92
0.76
71.4
0.632
139.6
TXC26-192A
NW Stepout
Core
590.25
593.29
3.05
43.3
0.83
132.9
TXC26-192A
NW Stepout
Core
597.29
597.71
0.43
263
3.48
638.7
TXC26-192A
NW Stepout
Core
633.83
635.81
1.98
179.5
1.514
343
TXC26-192A
Including
635.39
635.81
0.43
553
5.2
1,114.40
TXC26-195
NW Stepout
RC/Core
259.69
260
0.31
262
2.52
534.1
TXC26-195
NW Stepout
RC/Core
329.19
329.79
0.61
66.7
0.689
141.1
TXC26-195
NW Stepout
RC/Core
332.14
332.75
0.61
58.3
0.668
130.4
TXC26-195
NW Stepout
RC/Core
388.93
389.54
0.61
51.8
0.818
140.1
TXC26-196
E Extension
RC/Core
258.01
258.62
0.61
92.2
1.32
234.7
TXC26-198
E Extension
RC/Core
420.63
421.84
1.22
56.2
0.62
123.1
TXC26-199
NW Stepout
RC/Core
670.74
671.93
1.19
124
0.506
178.6
TXC26-199
NW Stepout
RC/Core
678.61
678.91
0.31
63.8
0.773
147.3
TXC26-199
NW Stepout
RC/Core
686.72
687.02
0.31
66.7
0.458
116.2
TXC26-199
NW Stepout
RC/Core
751.33
752.04
0.70
79.9
0.425
125.8
TXC26-199
NW Stepout
RC/Core
765.96
767.18
1.22
129.3
1.53
294.5
TXC26-200
NW Stepout
RC/Core
673
673.49
0.49
797
2.77
1,096.00
TXC26-200
NW Stepout
RC/Core
707.66
708.36
0.70
250
0.867
343.6
TXC26-200
NW Stepout
RC/Core
716.59
717.14
0.55
56.1
0.451
104.8
TXC26-200
NW Stepout
RC/Core
730.18
730.73
0.55
113
0.119
125.8
TXC26-200
NW Stepout
RC/Core
733.87
734.94
1.07
153
0.845
244.2
TXC26-200
NW Stepout
RC/Core
761.09
761.48
0.40
77.9
0.405
121.6
TXC26-200
NW Stepout
RC/Core
774.16
774.71
0.55
34.6
0.719
112.2
TXC26-200
NW Stepout
RC/Core
835.61
836.65
1.04
43.3
1.896
248
TXC26-200
NW Stepout
RC/Core
840.79
841.55
0.76
265
0.496
318.5
TXC26-201
NW Stepout
RC/Core
599.54
600.06
0.52
3.6
3.46
377.1
TXC26-201
NW Stepout
RC/Core
625.57
625.91
0.34
64
0.64
133.1
TXC26-201
NW Stepout
RC/Core
630.63
631.39
0.76
133
0.74
212.9
TXC26-201
NW Stepout
RC/Core
739.87
740.42
0.55
76.1
0.832
165.9
AgEq = Ag + Au/(Factor); where Factor = (Ag Price/Au Price)*(Ag Recovery/Au Recovery or Factor=($35/$3,500)*(88%/96%)=0.009263; True thickness is
40 to 65% of interval thickness based on the modelled vein geometries; Cut-off grade is 100 gpt AgEq; RC/Core = RC pre-collar with core tail.
Andrew Pollard, Blackrock's President and CEO, stated, "Tonopah is one of the great silver districts in
American history, with historic production of 174 million ounces of silver and 1.8 million ounces of gold
1
.
While we move forward on the permitting initiatives that will allow us to systematically de-risk and
advance the project, we're drilling to test the full potential and size of the district. These programs are
about addition, not subtraction. Each positive intercept expands the mineralized footprint of the deposit
and points the Company toward the project's next phase of growth. We've now tracked high-grade
mineralization well beyond the existing resource footprint, 600 metres to the northwest along the Denver
vein system. The system keeps going and we're using the high-grade intercepts to home in on priority
targets in real time. The veins appear to be heading toward a mineralized intrusive complex that may be
leading us toward the heart of the system. With assays for 12 holes pending and the drills still turning,
we're eagerly awaiting results as our real-time targeting helps us vector in on the best parts of the
expanded system.
Drilling to the northwest shows much more blue sky is achievable where additional
drilling is being contemplated."
TXC26-190 was completed to a depth of 1,383 metres and terminated in carbonaceous limestones of
the Ordovician Palmetto Group.
The limestones are altered and contain gold, arsenic and antimony in
elevated concentrations at the contact with the volcanic package.
The Company's eastern expansion drill program at Tonopah West (the "
Eastern Expansion
Program
") has been more challenging with silver and gold bounded between the Pittsburg-Monarch and
the McKane fault systems.
These northwest oriented faults bound the high-grade mineralization as
reported in TXC26-184, but off-setting the mineralization has proved to be difficult.
The Company is
evaluating the results received to date under the Eastern Expansion Program to establish the trends of
high-grade silver and gold within this fault bounded area.
The silver and gold resource area, as reported
in the Company's March 2026 mineral resource estimate, has been expanded, but more geologic
diligence is required to fully understand the geometry between the Pittsburg-Monarch and McKane fault
systems.
Figure 1: Drillhole Location Map
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/676/315607_f0c8c20ee40108a5_001full.jpg
The Reverse Circulation (RC) pre-collar drilling started in early March 2026 for the Eastern Expansion
Program and the NW Step Out Program.
To date, a total of 35 pre-collars totalling 8,074 metres were
completed to specifications.
One pre-collar hole was deemed unusable and re-drilled.
The pre collar
program was completed at the end of June 2026.
Core tails were initiated in late March 2026 with one core drill and expanded to two core drills in late
April 2026.
To date, a total 10,032 metres of core tails have been completed in 31 holes, two holes are
in process and two holes are awaiting completion.
Three core holes from surface are being
contemplated to follow up on the NW Step Out Program results.
Table 2: Drillhole Location Data (NAD1927 UTM, Zone 11 Datum)
Drillhole ID
Area
Type
UTM_NAD27
E
UTM_NAD27
N
Elevation (m)
Azimuth
Dip
Total Depth
(Ft)
Total Depth
(m)
TXC26-180
Victor
RC/Core
478803.50
4213793.70
1801.81
180
-80
1739.0
530.0
TXC26-181
Victor
RC/Core
478752.97
4213854.92
1798.58
170
-70
1595.0
486.2
TXC26-182
Ohio
RC/Core
478700.94
4213524.18
1804.46
180
-80
1394.0
424.9
TXC26-183
Ohio
RC/Core
478701.07
4213523.21
1804.39
180
-65
1393.0
424.6
TXC26-184
DPB South
RC/Core
478340.51
4213735.73
1785.77
180
-75
1365.0
416.1
TXC26-185
DPB South
RC/Core
478354.80
4213710.00
1785.61
180
-65
1247.0
380.1
TXC26-186
Victor
RC/Core
478684.02
4213979.78
1799.42
180
-85
1827.0
556.9
TXC26-187
DPB South
RC/Core
478401.57
4213784.47
1785.84
180
-70
1213.0
369.7
TXC26-188
Ohio
RC/Core
478657.47
4213622.65
1800.60
180
-80
1142.0
348.1
TXC26-189
DPB South
RC/Core
478603.28
4213598.06
1798.21
180
-80
998.0
304.2
TXC26-190
NW Stepout
RC/Core
476219.70
4215281.79
1723.75
0
-90
4537.0
1382.9
TXC26-191
DPB North
RC/Core
477781.64
4214656.31
1770.97
168
-74
2372.0
723.0
TXC26-192
NW Stepout
RC/Core
477582.04
4214897.11
1769.12
87
-87
1861.5
567.4
TXC26-192A
NW Stepout
Core
477582.04
4214897.10
1769.12
87
-87
3083.5
939.9
TXC26-193
NW Stepout
RC/Core
477024.64
4214859.61
1751.99
0
-90
2894.5
882.2
TXC26-194
NW Stepout
RC/Core
477526.19
4214277.86
1758.29
299
-72
2544.0
775.4
TXC26-195
DPB South
RC/Core
478403.17
4213387.75
1792.78
180
-60
1301.0
396.5
TXC26-196
DPB South
RC/Core
478252.74
4213492.34
1784.29
180
-75
1458.0
444.4
TXC26-197
Victor
RC/Core
478623.17
4213856.03
1793.30
180
-70
1334.0
406.6
TXC26-198
Victor
RC/Core
478661.38
4213874.17
1795.84
180
-80
1658.0
505.4
TXC26-199
NW Stepout
RC/Core
477610.92
4214648.21
1763.62
180
-80
2659.5
810.6
TXC26-200
NW Stepout
RC/Core
477610.82
4214647.37
1763.65
180
-72
2785.0
848.9
TXC26-201
NW Stepout
RC/Core
477711.79
4214601.41
1766.68
180
-80
2507.0
764.1
Drillhole ID
Area
Type
UTM_NAD27
E
UTM_NAD27
N
Elevation (m)
Azimuth
Dip
Total Depth
(Ft)
Total Depth
(m)
Quality Assurance/ Quality Control
All sampling is conducted under the supervision of the Company's project geologists, and a strict chain
of custody from the project to the sample preparation facility is implemented and monitored. The RC and
core samples are hauled from the project site to a secure and fenced facility in Tonopah, Nevada, where
they are loaded on to American Assay Laboratory's (AAL) flat-bed truck and delivered to AAL's facility in
Sparks, Nevada.
A sample submittal sheet is delivered to AAL personnel who organize and process the
sample intervals pursuant to the Company's instructions.
The RC samples are lined out at the lab and logged in to AAL's system.
The core samples are cut using
core saws and personnel at AAL's facility in Sparks, Nevada according to the Company's instructions
delivered with each core hole.
All samples are dried, crushed to 85% passing 10 mesh (2mm) and a 250-gram sub-sample split is
collected and pulverized to 200 mesh (74 micron) in a ring and puck pulverizer.
Then the pulverized
material is digested and analyzed for gold using fire assay fusion and an Induced Coupled Plasma (ICP)
finish on a 30-gram assay split (FA-PB30-ICP). Silver is determined using five-acid digestion and ICP
analysis (ICP-5AM48).
Over limits for gold and silver are determined using a gravimetric finish
(GRAVAU30 and GRAVAG30).
Data verification of the assay and analytical results are completed to
ensure accurate and verifiable results. Blackrock personnel insert a blind prep blank, lab blank or a
certified reference material approximately every 15th to 20th sample.
Qualified Persons
Blackrock's exploration activities at Tonopah West are conducted and supervised by Mr. William
Howald, Executive Chairman of Blackrock. Mr. William Howald, AIPG Certified Professional Geologist
#11041, is a Qualified Person as defined under National Instrument 43-101 -
Standards of Disclosure
for Mineral Projects
. He has reviewed and approved the contents of this news release.
About Blackrock Silver Corp.
Blackrock Silver Corp. (TSXV: BRC) (OTCQX: BKRRF) (FSE: AHZ0) is an American-focused emerging
primary silver developer systematically advancing the high-grade Tonopah West project in west-central
Nevada, a jurisdiction consistently ranked among the top mining regions globally. The Company is
focused on unlocking the value of one of the highest-grade undeveloped silver projects in the industry
and delivering a secure, domestic source of a metal critical to the U.S. energy and defense supply
chains.
Additional information on Blackrock Silver Corp. can be found on its website at
www.blackrocksilver.com
and by reviewing its profile on SEDAR+ at
www.sedarplus.ca
.
For further information, please contact:
Sean Thompson, Head of Investor Relations
Blackrock Silver Corp.
Phone: 1-800-380-1530
Email:
Andrew Pollard, President and Chief Executive Officer
Blackrock Silver Corp.
Phone: (604) 817-6044
Cautionary Note Regarding Forward-Looking Statements and Information
This news release contains "forward-looking statements" and "forward-looking information" (collectively,
"
forward-looking statements
") within the meaning of Canadian and United States securities
legislation, including the United States Private Securities Litigation Reform Act of 1995. All statements,
other than statements of historical fact, are forward-looking statements. Forward-looking statements in
this news release relate to, among other things: the Company's strategic plans; the timing of completion
of the Company's NW Step Out Program and Eastern Expansion Program and the anticipated
objectives and results therefrom; the receipt of pending assay results and additional drilling
contemplated after receipt of results from the NW Step Out Program and Eastern Expansion Program;
the Company's de-risking initiatives at Tonopah West; estimates of mineral resource quantities and
qualities; estimates of mineralization from drilling; geological information projected from sampling
results; and the potential quantities and grades of the target zones.
These forward-looking statements reflect the Company's current views with respect to future events and
are necessarily based upon a number of assumptions that, while considered reasonable by the
Company, are inherently subject to significant operational, business, economic and regulatory
uncertainties and contingencies. These assumptions include, among other things: conditions in general
economic and financial markets; accuracy of assay results; geological interpretations from drilling
results, timing and amount of capital expenditures; performance of available laboratory and other related
services; future operating costs; the historical basis for current estimates of potential quantities and
grades of target zones; the availability of skilled labour and no labour related disruptions at any of the
Company's operations; no unplanned delays or interruptions in scheduled activities; all necessary
permits, licenses and regulatory approvals for operations are received in a timely manner; the ability to
secure and maintain title and ownership to properties and the surface rights necessary for operations;
and the Company's ability to comply with environmental, health and safety laws. The foregoing list of
assumptions is not exhaustive.
The Company cautions the reader that forward-looking statements involve known and unknown risks,
uncertainties and other factors that may cause actual results and developments to differ materially from
those expressed or implied by such forward-looking statements contained in this news release and the
Company has made assumptions and estimates based on or related to many of these factors. Such
factors include, without limitation: the timing and content of work programs; results of exploration
activities and development of mineral properties; the interpretation and uncertainties of drilling results
and other geological data; receipt, maintenance and security of permits and mineral property titles;
environmental and other regulatory risks; project costs overruns or unanticipated costs and expenses;
availability of funds; failure to delineate potential quantities and grades of the target zones based on
historical data; general market and industry conditions; and those factors identified under the caption
"Risks Factors" in the Company's most recent Annual Information Form.
Forward-looking statements are based on the expectations and opinions of the Company's
management on the date the statements are made. The assumptions used in the preparation of such
statements, although considered reasonable at the time of preparation, may prove to be imprecise and,
as such, readers are cautioned not to place undue reliance on these forward-looking statements, which
speak only as of the date the statements were made. The Company undertakes no obligation to update
or revise any forward-looking statements included in this news release if these beliefs, estimates and
opinions or other circumstances should change, except as otherwise required by applicable law.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined
in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release.
1
All historic production information from Nevada Bureau of Mines & Geology, Bulletin 51 and Bulletin 92. US short tons have been converted to
metric tonnes by multiplying short tons by 0.9072
AgEq = (historic gold production times historic gold price) divided by historic silver price) plus
historic silver production . Production figures representative of entire district.
To view the source version of this press release, please visit
https://www.newsfilecorp.com/release/315607