Mining intelligence · Project
Columba
- Total silver resources
- 54.07 Moz
- Property area
- 850.3221 ha
- Linked companies
- 1
The asset
Project overview
High-grade silver project in Chihuahua, Mexico, with a 2025 inferred mineral resource estimate and an ongoing resource-expansion drilling program. Underground mining methods are contemplated.
- Mine type
- Underground
- Region
- North America
- Property area
- 850.3221 ha
The Columba Project is located approximately 240 km northwest of the city of Chihuahua, and 28 km south of the municipality of Nuevo Casas Grandes in northwestern Chihuahua State, Mexico.
Centre of the Columba Project · 30.1753, -107.7914
Companies behind the asset
Ownership & project roles
- Kootenay Silver100%
Owner · Five approved contiguous and overlapping mining concessions comprising the Columba Project, covering 850.3221 ha, held through wholly owned Mexican subsidiary Grupo Northair de Mexico, S.A. De C.V.
Source Columba 43-101 Maiden Resource Estimate Technical Report (11.34 MB) · PDF page 7 · Aug 1, 2025
Mineral inventory
Resources and reserves
Explore the reported mineral inventory, from headline totals to individual deposits. Resources and reserves remain separate; equivalent metal uses the company’s own assumptions.
Mineral resources as at May 29, 2025NI 43-101
- Inferred
- 54.07Moz silver
Columba Project underground mineral resource estimate. Total combines resource categories with different confidence levels; inferred resources are not reserves.
Source Columba 43-101 Maiden Resource Estimate Technical Report (11.34 MB) · PDF page 105 · Aug 1, 2025
Market cap per resource ounce
Kootenay Silver · US$87.9M market cap
- Inferred
- US$1.63/ oz silver
Each figure divides the whole company market cap by that category’s reported ounces in this estimate. No ownership adjustment; other company assets are not deducted. Resource ounces are not recoverable production or cash value. Share price 2026-09-21 · FX 2026-09-22.
Indicative silver equivalent
GoldSilver calculation · not company-reportedA price-based illustration using the company’s reported contained metals. Assumes 100% recovery and payability for every metal and excludes mining costs.
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Metal prices & calculation
AgEq ounces = silver ounces + each other metal’s contained amount × its price ÷ the silver price. Ounces and pounds are matched to the price units shown. This is gross in-situ metal value expressed as silver, not a recoverable resource estimate. Company-reported AgEq totals exclude this illustration.
| Category | TonnageMt | Grade | Contained metal | ||||
|---|---|---|---|---|---|---|---|
| Silverg/t | Lead% | Zinc% | SilverMoz | LeadMlb | ZincMlb | ||
| Inferred | 5.92 | 284 | 0.19 | 0.5 | 54.07 | 25.2 | 65.6 |
Cut-off 150 g/t
