RockWoofSketch map
Woof’s favorite find
Bullion Mine Pennington County
We picked it because its USGS record mentions 4 gem or collectible minerals (Quartz, Garnet, Gold, Silver) and 6 of our card minerals overall. That ties with 2 other site(s), so we broke the tie by mine status (past producers first), then USGS record quality, then name. USGS lists it as past producer for Gold, Silver. Minerals mentioned: Quartz, Garnet, Gold, Mica, Pyrite, Silver. Approx. location 43.898, -103.419. USGS record.
Ask first: a USGS record doesn’t mean you can visit. Find out who owns the land and get permission before collecting.
Field cards: what kind of sites?
Produced ore or material at some point in the past.
The mineral was noted here, without development.
Explored or test-dug, with no recorded production.
Was producing when the record was made.
Status not recorded.
Status terms come from USGS MRDS records.
Mineral cards
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
157 sites
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
152 sites
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
116 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
109 sites
Feldspar
Mohs 6–6.5. Blocky crystals with flat cleavage faces. Mindat
96 sites
Beryl
Mohs 7.5–8. Six-sided crystals; aquamarine and emerald are beryl. Mindat
50 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
35 sites
Tourmaline
Mohs 7–7.5. Long striated crystals, often black (schorl) or green and pink (elbaite). Mindat
20 sites
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
Silver 58Gold 56Cassiterite 42Beryl 34Muscovite 26Feldspar 25Wolframite 21Spodumene 15Mica 15Amblygonite 13Pyrite 11Pyrrhotite 7Commodities
Gold 145Silver 73Tin 61Feldspar 59Beryllium 44Mica 40Tungsten 34Lithium 21Copper 16Tantalum 13Sites (first 40)
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Peerless Prospect | Mica, Tantalum, Beryllium, Feldspar | Albite, Amblygonite, Beryl, Cassiterite, Columbite, Feldspar, Lithiophilite, Muscovite | Past Producer | 43.890, -103.420 |
| Hardesty Homestead | Beryllium, Mica, Tantalum, Feldspar | Albite, Amblygonite, Beryl, Cassiterite, Muscovite, Spodumene, Tantalite | Past Producer | 43.919, -103.463 |
| King Lithia Prospect | Lithium, Beryllium | Albite, Amblygonite, Beryl, Feldspar, Spodumene | Past Producer | 43.870, -103.392 |
| Tin Queen | Tin, Lithium, Mica, Feldspar | Albite, Amblygonite, Biotite, Cassiterite, Muscovite | Past Producer | 43.866, -103.596 |
| Etta Spodumene Mine | Feldspar, Mica, Lithium, Tin | Albite, Beryl, Cassiterite, Muscovite, Plagioclase, Spodumene, Wolframite | Past Producer | 43.881, -103.419 |
| Monkey Lode | Feldspar, Beryllium, Mica | Albite, Beryl, Muscovite | Past Producer | 43.882, -103.558 |
| Bob Ingersoll Mine | Lithium, Beryllium, Mica | Amblygonite, Beryl, Cassiterite, Cleavelandite, Feldspar, Lepidolite, Muscovite, Spodumene | Past Producer | 43.745, -103.454 |
| Oreville Spar Mica Mine | Mica | Amblygonite, Beryl, Cassiterite, Feldspar, Mica | Past Producer | 43.860, -103.626 |
| Dike Lode | Feldspar, Mica, Beryllium, Lithium | Amblygonite, Beryl, Feldspar, Muscovite, Spodumene | Past Producer | 43.857, -103.405 |
| Star Lode | Lithium, Beryllium | Amblygonite, Beryl, Lepidolite, Mica, Talc | Past Producer | 43.876, -103.349 |
| King Mica Mine | Feldspar, Beryllium, Mica | Amblygonite, Beryl, Lithiophilite, Muscovite | Past Producer | 43.879, -103.406 |
| Mountain Lion Mine | Beryllium, Lithium, Mica, Feldspar | Amblygonite, Beryl, Mica, Microcline, Spodumene | Past Producer | 43.858, -103.381 |
| Hugo Mine | Feldspar, Mica, Beryllium, Lithium | Amblygonite, Beryl, Muscovite, Spodumene | Past Producer | 43.882, -103.423 |
| Century Lode Claim | Lithium, Tin | Amblygonite, Cassiterite, Spodumene | Past Producer | 43.920, -103.574 |
| Tiger Lode | Lithium | Amblygonite, Spodumene | Past Producer | 43.893, -103.342 |
| Ottershagen Prospect | Beryllium | Beryl | Past Producer | 43.872, -103.379 |
| New England Prospect | Feldspar, Beryllium, Mica | Beryl, Biotite, Feldspar, Microcline, Muscovite | Occurrence | 43.851, -103.394 |
| Henry Tin | Tin, Beryllium | Beryl, Cassiterite | Occurrence | 43.896, -103.421 |
| Glendale | Feldspar, Beryllium, Tin | Beryl, Cassiterite, Feldspar | Past Producer | 43.867, -103.376 |
| Phillip and Phyllis Lodes | Feldspar | Beryl, Cassiterite, Feldspar, Mica | Past Producer | 43.888, -103.381 |
| General Harney | Tin | Beryl, Cassiterite, Mica | Past Producer | 43.938, -103.586 |
| Maderposson | Feldspar, Beryllium | Beryl, Feldspar | Occurrence | 43.862, -103.370 |
| Ferguson Lode Claim | Feldspar, Beryllium | Beryl, Feldspar | Past Producer | 43.876, -103.368 |
| Champion Property | Beryllium, Feldspar | Beryl, Feldspar, Mica | Past Producer | 43.878, -103.402 |
| Big Chief Mine | Feldspar, Mica | Beryl, Feldspar, Mica | Past Producer | 43.865, -103.382 |
| Big Shot | Feldspar, Beryllium | Beryl, Feldspar, Mica | Occurrence | 43.895, -103.455 |
| Eureka | Mica, Beryllium, Feldspar | Beryl, Feldspar, Muscovite | Occurrence | 43.869, -103.389 |
| Wood Tin Lode | Feldspar, Lithium, Beryllium, Mica | Beryl, Feldspar, Muscovite, Spodumene | Past Producer | 43.875, -103.361 |
| Edison Mine | Lithium | Beryl, Feldspar, Muscovite, Spodumene | Past Producer | 43.882, -103.406 |
| Plate Mica Prospect | Mica, Beryllium | Beryl, Mica | Past Producer | 43.902, -103.457 |
| Queen Claim | Beryllium, Feldspar | Beryl, Microcline | Past Producer | 43.869, -103.382 |
| Ponca Group | Feldspar, Mica, Beryllium | Beryl, Microcline, Muscovite | Past Producer | 43.877, -103.371 |
| Big Smoke Group | Feldspar, Beryllium | Beryl, Muscovite | Past Producer | 43.858, -103.375 |
| Pink Elephant Beryl Prospect | Beryllium, Mica | Beryl, Muscovite | Past Producer | 43.870, -103.394 |
| Gilt Edge Mica Mine | Mica, Beryllium | Beryl, Muscovite | Past Producer | 43.884, -103.367 |
| Sitting Bull Group | Beryllium, Mica, Feldspar | Beryl, Muscovite | Past Producer | 43.902, -103.435 |
| Dan Patch Group | Feldspar, Mica, Beryllium | Beryl, Muscovite, Sphalerite | Past Producer | 43.894, -103.442 |
| First Find Lode | Tin | Cassiterite | Occurrence | 43.867, -103.587 |
| Hopeful | Tin | Cassiterite | Occurrence | 43.923, -103.484 |
| Tin Chance and Tin Chance No. 1 | Tin | Cassiterite | Occurrence | 43.929, -103.581 |
Fossil collections
The Paleobiology Database lists 53 fossil collection records in Pennington County. These are research records, not public dig sites.
Nearby counties
Custer County · Meade County · Lawrence County · Fall River County · Shannon County
South Dakota mineral guides
- Beryl in South Dakota
- Tourmaline in South Dakota
- Quartz in South Dakota
- Garnet in South Dakota
- Gold in South Dakota
- Mica in South Dakota
Back to all South Dakota counties.
How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.
Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.
Updated