Sketch map
Woof’s favorite find
Crater Mountain
We picked it because its USGS record mentions 3 gem or collectible minerals (Quartz, Gold, Silver) and 7 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as prospect for Molybdenum, Copper. Minerals mentioned: Quartz, Gold, Mica, Pyrite, Galena, Copper, Silver. Approx. location 44.032, -109.638. 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?
The mineral was noted here, without development.
Produced ore or material at some point in the past.
Status not recorded.
Explored or test-dug, with no recorded production.
Was producing when the record was made.
Status terms come from USGS MRDS records.
Mineral cards
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
11 sites
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
10 sites
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
9 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
7 sites
Galena
Mohs 2.5–2.75. Heavy, silvery lead ore that breaks into cubes. Mindat
7 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
4 sites
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
3 sites
Feldspar
Mohs 6–6.5. Blocky crystals with flat cleavage faces. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
Galena 6Chalcopyrite 5Gold 4Tetrahedrite 4Pyrite 4Sphalerite 3Copper 2Silver 2Bornite 2Sylvanite 2Molybdenite 2Sulfur 1Commodities
Uranium 12Gold 10Silver 9Copper 8Lead 7Zinc 4Sulfur 3Molybdenum 3Dolomite 2Iron 1Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Copper King | Copper, Silver, Gold | Bornite, Famatinite, Galena, Tetrahedrite | Occurrence | 44.633, -109.784 |
| Big Goose Vein | Silver, Gold | Chalcopyrite, Galena, Gold, Pyrite, Sphalerite, Sylvanite, Tetrahedrite | Occurrence | 44.633, -109.717 |
| Silver Creek | Molybdenum, Copper | Chalcopyrite, Molybdenite, Bornite, Galena, Pyrite, Sphalerite | Prospect | 44.028, -109.675 |
| Kirwin | Copper | Chalcopyrite, Molybdenite, Chalcocite, Covellite, Digenite, Pyrite | Past Producer | 43.875, -109.285 |
| Crater Mountain | Molybdenum, Copper | Chalcopyrite, Pyrite, Galena, Sphalerite, Tetrahedrite, Arsenopyrite | Prospect | 44.032, -109.638 |
| Evening Star and Silver Tip | Gold, Silver, Copper | Chalcopyrite, Sylvanite, Tetrahedrite | Producer | 44.667, -109.901 |
| Hoodoo Claim | Lead | Copper, Galena, Gold, Silver | Occurrence | 44.633, -109.784 |
| Butte Claim | Gold, Copper, Silver | Copper, Gold, Silver | Occurrence | 44.633, -109.717 |
| Tip Top Claim | Silver, Gold | Galena, Proustite, Stromeyerite | Occurrence | 44.633, -109.784 |
| Crouch Gold Prospect | Gold | Gold | Past Producer | 44.375, -109.934 |
| Unidentified Prospect | Iron | Hematite | Occurrence | 44.669, -109.275 |
| Unknown (Holmes Lake) | Sodium Sulfate | Mirabilite | Occurrence | 44.542, -109.116 |
| Continental Sulphur | Sulfur | Sulfur | Producer | 44.667, -109.684 |
| Big Wind | Uranium | — | Occurrence | 44.335, -109.328 |
| Gail Group | Uranium | — | Occurrence | 44.520, -109.593 |
| Sunlight Basin | Uranium | — | Occurrence | 44.776, -109.436 |
| Unidentified Occurrence | Uranium | — | Occurrence | 44.332, -109.593 |
| Waggoner Group | Uranium | — | Occurrence | 44.826, -109.260 |
| Spirit Mountains | Uranium | — | Occurrence | 44.480, -109.047 |
| Angie Claims | Uranium | — | Occurrence | 44.915, -109.573 |
| Sweetwater Creek | Sulfur | — | Unknown | 44.496, -109.629 |
| Big Wind | Uranium | — | Prospect | 44.300, -109.351 |
| Spirit Mountain Uranium Company | Uranium | — | Unknown | 44.481, -109.047 |
| Tibbs Butte | Uranium | — | Occurrence | 44.950, -109.471 |
| Waggoner Claims | Uranium | — | Prospect | 44.847, -109.352 |
| Iron King Claims | — | — | Occurrence | 44.675, -109.274 |
| Red Butte | Dolomite | — | Unknown | 44.557, -109.195 |
| Crouch Prospect | Copper, Gold, Lead, Zinc | — | Past Producer | 44.377, -109.999 |
| Cody Deposits | Sulfur | — | Past Producer | 44.511, -109.122 |
| Shoshone Canyon | Dolomite | — | Unknown | 44.511, -109.152 |
| Dead Indian | Uranium | — | Occurrence | 44.761, -109.350 |
| Sunlight District | Tungsten, Gold, Silver | — | Occurrence | 44.650, -109.734 |
| Kirwin District | Copper | — | Past Producer | 43.873, -109.303 |
Fossil collections
The Paleobiology Database lists 497 fossil collection records in Park County. These are research records, not public dig sites.
Nearby counties
Big Horn County · Hot Springs County · Teton County · Sheridan County · Washakie County
Wyoming mineral guides
- Tourmaline in Wyoming
- Quartz in Wyoming
- Garnet in Wyoming
- Gold in Wyoming
- Mica in Wyoming
- Feldspar in Wyoming
Back to all Wyoming 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