Tombstone Property
Executive Summary
Executive Summary (overview)
- One-paragraph overview tied to the latest reported drilling results date.
- Estimated probability of advancing to a formal resource.
- Typical ranges for grade, tonnage, mine life, and method mix.
- Cost structure summary and where the project ranks vs peers.
Regional Gold Potential
Tombstone is located in United States, North America. The surrounding region has historically demonstrated a high potential for gold endowment and is very proximal to other gold properties. Physical setting (very high elevation, moderate relief, dry climate) shapes access, seasonality, and operating costs. Geologically, the area is dominated by Basic volcanic rocks, under very thin lithosphere with moderately thick sedimentary cover in a Meso- and Cenozoic Extended Crust tectonic province—factors that inform both deposit style and development complexity.
Drill Intercepts
Reported results (Gold Equivalent) average moderate grade, very long, and very deep. The most recent intercepts are benchmarked against a global gold database.
| Date | Intercept (Gold Equivalent) | Grade | Length | Depth |
|---|---|---|---|---|
| 2025-08-14 | 1.04 g/t Gold Equivalent over 50.3 m from 67.0 m | Moderate Grade | Very Thick | Moderate Depth |
| 2025-08-14 | 0.14 g/t Gold Equivalent over 9.1 m from 182.9 m | Low Grade | Very Thick | Moderate Depth |
| 2025-08-14 | 0.15 g/t Gold Equivalent over 35.1 m from 123.4 m | Low Grade | Very Thick | Moderate Depth |
| 2025-08-14 | 0.31 g/t Gold Equivalent over 28.9 m from 68.6 m | Moderate Grade | Very Thick | Moderate Depth |
| 2025-08-14 | 0.47 g/t Gold Equivalent over 62.5 m from 73.1 m | Moderate Grade | Very Thick | Moderate Depth |
| 2025-08-14 | 0.46 g/t Gold Equivalent over 22.9 m from 105.1 m | Moderate Grade | Very Thick | Moderate Depth |
| 2025-08-14 | 5.29 g/t Gold Equivalent over 6.1 m from 88.4 m | Very High Grade | Thick | Moderate Depth |
| 2025-01-28 | 0.30 g/t Gold Equivalent over 13.7 m from 146.3 m | Moderate Grade | Very Thick | Moderate Depth |
| 2025-01-28 | 0.21 g/t Gold Equivalent over 25.9 m from 109.7 m | Moderate Grade | Very Thick | Moderate Depth |
| 2025-01-28 | 0.89 g/t Gold Equivalent over 22.9 m from 64.0 m | Moderate Grade | Very Thick | Moderate Depth |
| 2025-01-28 | 0.10 g/t Gold Equivalent over 12.2 m from 223.4 m | Low Grade | Very Thick | Moderate Depth |
| 2025-01-28 | 0.10 g/t Gold Equivalent over 22.9 m from 160.0 m | Low Grade | Very Thick | Moderate Depth |
| 2025-01-28 | 88.88 g/t Gold Equivalent over 1.5 m from 73.1 m | Very High Grade | Moderate Thickness | Moderate Depth |
| 2025-01-28 | 6.96 g/t Gold Equivalent over 25.9 m from 70.1 m | Very High Grade | Very Thick | Moderate Depth |
| 2025-01-28 | 2.80 g/t Gold Equivalent over 67.0 m from 65.6 m | High Grade | Very Thick | Moderate Depth |
Resource Potential
Resource Potential (overview)
- Probability estimate of advancing to a formal resource.
- Typical ranges for grade and tonnage with p50 markers.
- Side-by-side histograms vs. a global reference dataset.
- Plain-English guidance on how to interpret uncertainty.
Economic Potential
Economic Potential
- Distribution of NPV across 1,000 discounted cash-flow simulations.
- Expected NPV value with context vs. drill-stage peers.
- Discussion of spread, skew, and scenario tails (upside/downside).
- Explicit assumptions shown for discount rate and commodity price.
Assumption Distributions
Assumption Distributions
- Reserve conversion and mine life distributions.
- Recovery, processing costs, and waste:ore ratio ranges.
- Capex/offsite opex, average production rate, and other drivers.