Kootenay Reports Results from Nine Holes in Ongoing Columba Drill Program
Drilling is focused on the expansion of the known resource bodies that remain open in all directions. The extensive Columba vein system currently hosts an inferred Mineral Resource Estimate ("MRE") totaling 54.1 Moz of silver based on 5.92 Mt at a grade of 284 gpt. (see News Release
This release presents highlights from ongoing systematic step-out and extension drilling at Columba. The results contained herein include four holes targeting D Vein and five holes targeting the sub-parallel B2/Lupe Vein System. These holes are testing extensions of known mineralized structures at a nominal 100m spacing. The Company is currently experiencing much longer than usual assay turnaround times for results from the laboratory.
Highlights include:
D Vein Trend – All holes on D Vein represent aggressive extension drilling, targeting intercepts ~100 meters beneath the existing known extents of mineralization. The vein remains open at depth and along strike. On cross section the deeper holes show the dip of the veins 'flatten'. That is consistent with structural measurements at surface that predict these areas will be tighter (compression zones) and not as strongly mineralized. Whereas the areas the vein dip steepens the zones will be more open (extensional) and thus more strongly mineralized. It is expected this pattern will repeat itself in the down dip direction (deeper).
Links to D Vein Cross Sections, Plan Map, and Long Section.
-
CDH-25-225
- Hangingwall (blind) vein system shows some high grades, roughly 100m above Main D Vein target zone includes
-
7.0 meters (4.97m estimated true width "etw") grading 186 ppm Ag, 0.1% Pb and 3.8% Zn from 405 meters downhole
- Includes 2.0 meters (1.42m etw) grading 573 gpt Ag. 0.2% Pb and 12.7% Zn
- Includes 1.0 meter (0.71m etw) grading 1,040 gpt Ag, 0.3% Pb and 21% Zn
- D Vein interval
-
12.9 meters (9.16m etw) meters averaging of 87 gpt Ag, 0.3% Pb and 1.5% Zn
- Sub interval 1.9 meters (1.35m etw) grading 157 gpt Ag, 1.3% Pb and 4.8% Zn.
- About 75 meters vertically deeper than CDH-25-198 grading 65 gpt Ag and 3% Pb+Zn over 9.25 meters (6.10 m etw). See news release dated
May 5, 2025 .
-
CDH-25-223
-
14.83 meters (8.75m etw) grading 135 gpt Ag, 0.1% Pb and 1.1% Zn.
- Includes 4.5 meters (2.66m etw) of 232 gpt Ag, 0.4% Pb and 1.6% Zn.
- About 100 meters vertically deeper than CDH-25-199 grading 16.5 meters (5.78m etw) of 691 gpt Ag and 4.62% Pb+Zn with 5.5 meters (1.93m. etw) of 1,725 gpt Ag and 11.6% Pb+Zn. See news release dated
May 5, 2025 . - Wide open to depth and along strike.
-
14.83 meters (8.75m etw) grading 135 gpt Ag, 0.1% Pb and 1.1% Zn.
Lupe-B2 Trend – Southeasterly extension of the F Vein trend, Lupe/B2 Veins are hosted within a broad corridor of veining oriented to the east-southeast. This corridor of veins is showing excellent potential for strong widths and high grades. It remains open along strike and to depth showing strong growth potential. See the long sections for Lupe and B 2 Veins for visual reference.
Links to Lupe-B2 Vein Cross Sections, Plan Map, Lupe Long Section, and B2 Long Section.
-
CDH-25-222
- Several silver bearing structures intercepted include a new blind vein high in the system, a hanging wall structure, the Lupe Vein and B2 Vein.
- "Blind vein" encountered at 131.52 meters downhole, very high in the system well above the "grade line" where high grade is expected. Thus the 2.48 meters grading 38 gpt Ag holds good potential for new high grade slightly deeper.
- Hangingwall vein;
- 5.59 meters (3.35m etw) of 172 gpt Ag from 221.06 meters downhole.
- Lupe Vein System;
- 7.6 meters (4.56m etw) averaging 299 gpt Ag, 0.5%Pb and 1.0% Zn from 379.4 meters downhole.
- sub interval of 0.45 meters (0.27m etw) of 1,830gpt Ag, 5.0% Pb and 6.2% Zn)
- Open along strike and to depth.
- B2 Vein System;
- 4.53 meters (2.72m etw) averaging 390 gpt Ag, 0.2% Pb and 0.7% Zn from 435.85 meters downhole within a wide 31 meters (18.6 meters etw) of 92 gpt Ag, 0.1% Pb and 0.2% Zn.
- sub interval of 1.12 meters (0.67m etw) of 882 gpt Ag, 0.4% Pb and 1.2% Zn.
- The combined Lupe/B2 vein intercepts sit within a low-grade envelope of 100.5 meters (60.3m etw) averaging 56 gpt Ag, 0.1% Pb and 0.1% Zn.
-
CDH-25-221
- Both Lupe and B2 Veins hit good grading intercepts close to each other within a broad low-grade envelope.
- Lupe-B2 Veins were intercepted within a zone measuring 9.61 meters (7.88m etw) averaging 160 gpt Ag, 0.1% Pb and 0.3% Zn from 304.7 meters downhole.
- Lupe vein included 0.40 meters (0.33 m etw) of 537 gpt Ag, 0.1% Pb and 0.7% Zn from 304.7 meters.
- B2 Vein zone intercept of 3.47 meters (2.85 m etw) averaging 315 gpt Ag, 0.3% Pb and 0.5% Zn from 310.84 meters downhole.
- Includes 0.52 meters (0.43m etw) of 1,295 gpt Ag, 1.3% Pb and 1.1% Zn
- The Lupe and B2 intercepts are enveloped by 61.83 meters of 49 gpt Ag and 0.1% Zn.
Holes CDH-25-219, 221 and 222 intercepted both the Lupe and B 2 veins and as such can be seen on both long sections for each of the Lupe and B 2 veins.
Holes CDH-25-224 and 226 were drilled well above the grade line for both the Lupe and B 2 veins. They were drilled primarily to confirm dip orientation before going deeper.
Drilling continues with two drills as
"Drilling continues to deliver positive results at Columba. Holes CDH-25-220, 223 and 225 along with previously announced 216 are hitting good wide mineralized vein and vein stockwork breccia at some of the deepest depths tested thus far on the D Vein leaving this area wide open to depth. Also impressive is the wide-open expansion potential in the Lupe and B 2 veins. This shows well on the long sections. We are now approximately 13,000 meters into our 50,000-meter program with 7 holes awaiting assays and drill holes CDH 25-236 and 237 underway"
Dale Brittliffe, VP Exploration adds,
"The high-grade veins enveloped by the wide zones of low grade underscore the huge amount of silver in the Columba vein system and bodies well for further expansion of high-grade resources. We are extremely pleased to see continued success in expansion drilling along the B2/Lupe corridor. The intervals we are encountering are similar to those in D Vein which are often characterized by broad zones of well mineralized stockwork veining either side of the high-grade vein within the main structure"
Drill results, CDH-25-219 to 227
|
Hole ID |
From (meters) |
To |
Interval |
est |
Silver gpt |
Pb % |
Zn% |
Geologic |
Elevation |
|
CDH-25-219 |
257.00 |
281.80 |
24.80 |
23.31 |
53 |
0.0 |
0.1 |
Lupe-B2 System |
1670 |
|
Incl. |
280.00 |
281.80 |
1.80 |
1.69 |
124 |
0.1 |
0.2 |
B2 |
1665 |
|
And |
283.00 |
296.60 |
13.60 |
12.78 |
36 |
0.0 |
0.1 |
B2 System |
1659 |
|
Incl. |
294.00 |
296.60 |
2.60 |
2.44 |
117 |
0.0 |
0.3 |
FW System |
1654 |
|
And |
364.00 |
365.00 |
1.00 |
0.94 |
102 |
0.1 |
0.4 |
FW System |
1603 |
|
CDH-25-220 |
654.25 |
667.652 |
13.40 |
9.78 |
11 |
1.0 |
1.0 |
D-Vein System above 1.35m Cavity |
1337 |
|
Incl. |
667.50 |
669.002 |
0.152 |
0.11 |
415 |
7.0 |
10.0 |
D- |
1337 |
|
And |
671.00 |
688.00 |
17.00 |
12.41 |
26 |
0.4 |
0.6 |
D Vein System below Cavity |
|
|
Incl. |
673.00 |
675.00 |
2.00 |
1.46 |
103 |
0.4 |
0.8 |
D-Vein System |
1334 |
|
And |
696.95 |
705.00 |
8.05 |
5.88 |
35 |
0.3 |
0.8 |
FW System |
1311 |
|
Incl. |
701.10 |
701.50 |
0.40 |
0.29 |
37 |
0.1 |
4.5 |
FW System |
1311 |
|
CDH-25-221 |
264.00 |
325.83 |
61.83 |
50.70 |
49 |
0.0 |
0.1 |
Lupe-B2 Envelope |
1612 |
|
Incl. |
304.70 |
314.31 |
9.61 |
7.88 |
160 |
0.1 |
0.3 |
Lupe B2 Vein System |
1608 |
|
Incl. |
304.70 |
305.10 |
0.40 |
0.33 |
537 |
0.1 |
0.7 |
|
1608 |
|
And |
310.84 |
314.31 |
3.47 |
2.85 |
315 |
0.3 |
0.5 |
B2- System |
1602 |
|
Incl |
310.84 |
311.36 |
0.52 |
0.43 |
1295 |
1.3 |
1.1 |
B2 Vein |
1602 |
|
CDH-25-222 |
131.52 |
134.00 |
2.48 |
1.49 |
38 |
0.0 |
0.0 |
Blind Vein |
1780 |
|
And |
221.06 |
226.65 |
5.59 |
3.35 |
172 |
0.0 |
0.1 |
HW System |
1698 |
|
And |
289.00 |
389.50 |
100.50 |
60.30 |
56 |
0.1 |
0.1 |
Lupe-B2 System |
1598 |
|
Incl. |
365.00 |
371.50 |
6.50 |
3.90 |
121 |
0.1 |
0.2 |
Lupe-B2 System |
1567 |
|
And |
379.40 |
387.00 |
7.60 |
4.56 |
299 |
0.5 |
1.0 |
Lupe-B2 System |
1567 |
|
Incl. |
379.40 |
379.85 |
0.45 |
0.27 |
1830 |
5.0 |
6.2 |
|
1563 |
|
And |
401.00 |
403.00 |
2.00 |
1.20 |
129 |
0.1 |
0.4 |
FW System |
1545 |
|
And |
427.00 |
458.00 |
31.00 |
18.60 |
92 |
0.1 |
0.2 |
B2 System |
1520 |
|
Incl. |
435.85 |
440.38 |
4.53 |
2.72 |
390 |
0.2 |
0.7 |
B2 System |
1513 |
|
Incl. |
436.70 |
437.82 |
1.12 |
0.67 |
882 |
0.4 |
1.2 |
B2 System |
1513 |
|
CDH-25-223 |
506.14 |
520.97 |
14.83 |
8.75 |
135 |
0.4 |
1.1 |
D Vein system zone of low recovery 3 |
|
|
Incl. |
513.00 |
517.50 |
4.50 |
2.66 |
232 |
0.4 |
1.6 |
Broken rock, poor recovery |
|
|
CDH-25-224 |
|
|
|
|
|
|
|
|
|
|
CDH-25-225 |
289.05 |
290.85 |
1.80 |
1.28 |
45 |
0.2 |
0.2 |
HW Vein |
1588 |
|
And |
374.45 |
374.90 |
0.45 |
0.32 |
109 |
0.9 |
0.6 |
HW System |
1515 |
|
And |
405.00 |
412.00 |
7.00 |
4.97 |
186 |
0.1 |
3.8 |
HW System |
1486 |
|
Incl. |
408.30 |
410.30 |
2.00 |
1.42 |
573 |
0.2 |
12.7 |
HW System |
1486 |
|
Incl. |
409.30 |
410.30 |
1.00 |
0.71 |
1040 |
0.3 |
21.0 |
HW System |
1486 |
|
And |
512.10 |
525.00 |
12.90 |
9.16 |
87 |
0.3 |
1.5 |
D Vein, poor recovery 514-518m |
1397 |
|
Incl. |
512.10 |
514.00 |
1.90 |
1.35 |
157 |
1.3 |
4.8 |
D-Vein |
1397 |
|
CDH-25-226 |
230.60 |
231.65 |
1.05 |
0.69 |
117 |
0.0 |
0.1 |
B2 system |
1703 |
|
And |
277.00 |
297.00 |
20.00 |
13.20 |
34 |
0.0 |
0.1 |
FW System |
1650 |
|
CDH-25-227 |
454.44 |
527.00 |
72.56 |
51.52 |
35 |
0.2 |
0.5 |
D-Vein System |
1484 |
|
Incl. |
465.00 |
483.00 |
18.00 |
12.78 |
57 |
0.5 |
1.1 |
D-Vein System |
1482 |
|
Incl. |
466.50 |
468.00 |
1.50 |
1.07 |
273 |
0.6 |
0.9 |
D-Vein System |
1482 |
|
And |
497.00 |
511.00 |
14.00 |
9.94 |
78 |
0.2 |
0.7 |
FW System |
1455 |
|
Incl. |
499.00 |
503.00 |
4.00 |
2.84 |
123 |
0.2 |
0.9 |
FW System |
1455 |
|
1 Estimated true widths are based on current interpretation of mineralized structures. |
|
2 CDH-24-220 Cavity encountered between 667.65 and 669.00 meters totaling 1.35m from the 1.5 meters interval, 0.15m of core from that interval was recovered and analyzed |
|
3 CDH-25-223, interval broken and rubbly, low recoveries encountered through much of the interval |
The current phase of work comprises a planned total 50,000 meter drilling program designed to follow up on mineralized veins comprising the Company's recent 43-101 Mineral Resource Estimate ("MRE"). The maiden MRE is detailed in a report entitled "Technical Report on theMaiden Mineral Resource Estimate for the
Extension of Sideways Frequency LLC
The Company would also like to announce that, subject to regulatory approval, it has extended its appointment of
Corporate Update
The Company also announces that during the fiscal quarter ended
For more information regarding the ATM Program, please see the Company's news release dated
This news release does not constitute an offer to sell or the solicitation of an offer to buy securities, nor shall there be any sale of securities in
About
The Columba project is a classic high grade epithermal vein system. That management believes is a newly recognized vein district. It is typical in character and size of other vein districts in
Hosted within a volcanic caldera setting, the surface extent of mapped veins measures roughly 4 kilometres by 3 kilometres. Vein mineralization occurs over a minimum vertical extent of 350 meters as shown by drilling. The veins appear to be intermediate sulfidation veins indicating the potential for depths exceeding 700 meters of vertical extent. This remains to be tested, and all veins remain open to depth.
The veins cut every known rock type on the project and the veins or vein structures can be traced across the highest elevations of the caldera. This indicates veins formed late in caldera history. As elevation increases vein development becomes irregular eventually being replaced by breccias at the higher elevations. Silver grades diminish with increasing elevation right down to background values. Correspondingly silver grades increase with depth from background at higher elevations to highs of kilograms per tonne at depth. It is evident from these features that the vein system has undergone almost no erosion and so whatever silver was deposited originally is largely still there.
A general rule of thumb on the project is at levels deeper than 1,750 meters above sea level is where good grades begin to appear. This is what is referred to as the grade line.
Prior to
The Company acquired 100% of the project and also has a 24-year surface access agreement that includes annual and other payments and allows for both exploration and exploitation. The agreement covers all the mineralized areas drilled to date.
Sampling and QA/QC at Columba
All technical information for the Columba exploration program is obtained and reported under a formal quality assurance and quality control ("QA/QC") program. Samples are taken from core cut in half with a diamond saw under the direction of qualified geologists and engineers. Samples are then labeled, placed in plastic bags, sealed and with interval and sample numbers recorded. Samples are delivered by the Company to ALS Minerals ("ALS") in Chihuahua. The Company inserts blanks, standards and duplicates at regular intervals as follows. On average a blank is inserted every 100 samples beginning at the start of sampling and again when leaving the mineral zone. Standards are inserted when entering the potential mineralized zone and in the middle of them, on average one in every 25 samples is a standard. Duplicates are taken in the mineralized intervals at an average 2 duplicates for each hole.
The samples are dried, crushed and pulverized with the pulps being sent airfreight for analysis by ALS in
Neither the
Qualified Persons
The mineral resource was estimated by
The
About
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS:
The information in this news release has been prepared as at
Forward-looking statements are necessarily based upon a number of factors and assumptions that, while considered reasonable by
Cautionary Note to US Investors: This news release includes Mineral Reserves and Mineral Resources classification terms that comply with reporting standards in
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