Important: Mineral estimates referenced on this site are historical estimates. A qualified person has not done sufficient work to classify them as current mineral resources or mineral reserves, and they should not be relied upon. Nothing on this site is an offer to sell or a solicitation of an offer to buy any security.
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Geological Analysis

Hackberry Silver Mine — Deposit Geology, Drill Results, and Historical Production
Deposit Type — Epithermal Ag/Au System

The Hackberry deposit is a structurally controlled, high-grade epithermal vein system — the same geological setting responsible for the world's greatest silver mines including Fresnillo (Mexico), Coeur d'Alene (Idaho), and Creede (Colorado). The silicified zone identified in drill hole hb1701 confirms hydrothermal fluid circulation deposited silver, gold, platinum, and palladium as they cooled. This is not a disseminated, low-grade system.

A porphyry dyke intrusion identified across multiple holes is the heat source driving the hydrothermal circulation — explaining why Hackberry has 9+ valuable metals, not just silver. As metal-rich fluids migrated outward, they deposited different metals at different depths: silver and gold near surface, copper and molybdenum at depth, scandium and PGMs in associated zones.

Drill Results
Drill Holes
5
of 240 acres tested (~2%)
Peak Intercept
19.4 oz/t
667 ppm Ag @ 141.4m
Avg Vein Width
1.94m
6 ft 4.75 inches
Avg Depth
609 ft
across all 5 holes
HoleWidthDepthNotes
hb17013.21m141.4mPeak 667 ppm · 19.4 oz/ton
HB-020.97m185mModerate grade Ag + base metals
HB-030.99m198mNarrow high-grade Ag intercept
HB-046.52m185mWidest · Polymetallic Ag+Pb+Zn
HB-050.74m225mDeepest · Confirms continuation
"High grade" silver mine defined at 5–8 oz/ton. Hackberry peak = 2–4× above threshold.
Historical Production — 1878 Bullion Record
May 1878 · First 26 Days of Milling
$30,349.66
2026 equivalent: ~$1.1M · Grade: 350+ oz/ton (10,000+ ppm) — 18× higher than current drill peak

The original company bullion book, page 10, records four shipments from the Howell furnace mill. The mill operated under director John Howell using 1878 technology — no modern processing methods. Four shipments were recorded in the first 26 days: $6,071.58 (May 5), $6,372.69 (May 12), $5,821.80 (May 16), and $12,083.68 (May 26). Total: $30,349.66.

Exploration Potential

The 2023 technical report identifies three exploration targets:

Target A
South Hackberry extension
High-grade zone trends SSE beneath thick colluvium. Untested down-dip.
Target B
North Hackberry extension
~400m NW of main mine. Weak surface geochem suggests deep target.
Target C
Northern vein system
~800m NW. Vein breccia lenses. Above intermediate precious-metal sulfide zone.
4+ mile trend
Unexplored structural corridor
Entire strike length untested by modern drilling.
Conceptual exploration targeting only. The potential quantity and grade of any exploration target described or depicted here is conceptual in nature. There has been insufficient exploration to define a mineral resource in the targeted areas, and it is uncertain whether further exploration will result in any target being delineated as a mineral resource.
QP Recommendation

The Hackberry Property exhibits ample evidence of significant, undiscovered, high-grade silver, gold, and base-metal mineralization. SOG should conduct detailed geological mapping, structural analysis, geochemical sampling, and geophysical surveys (NMR, IP/Resistivity) to define drill targets. A comprehensive drilling program must be the principal objective for an updated site valuation. — Mark H. Slatten, MS (2023 technical report)