| Deposit ID | 10013247 |
|---|---|
| MRDS ID | D009437 |
| Record type | Site |
| Current site name | Last Dollar Mine |
| Alternate or previous names | Claims: Last Dollar, O.K., Minnie Moore |
| Related records | 10143502 |
| Geographic coordinates: | -106.82145, 39.16055 (WGS84) |
|---|---|
| Elevation | 3155 |
| Relative position | 1.9 MILES S 4 W FROM ASPEN |
Political divisions (FIPS codes)
Pitkin(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Aspen(quadrangle 1:24,000 scale)
Leadville(quadrangle 1:100,000 scale)
Leadville(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Roaring Fork(hydrologic unit)
Colorado Headwaters(hydrologic accounting unit)
Colorado Headwaters(hydrologic subregion)
Upper Colorado(hydrologic region)
Federal lands
White River National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Pitkin |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 010S;010S | 084W;085W | 19;24 | SW OF SW (19); SE OF SE (24) | Colorado |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Barite | Gangue |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||||
| Rock unit name | Aplite Porphyry | ||||||
| Rock description | Aplite Porphyry | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Dolomite |
| Rock unit name | Leadville Limestone (Redcliff And Castle Butte Members);Belden Formation |
| Rock description | Leadville Limestone (Redcliff And Castle Butte Mbrs);Belden Formation |
| (1) | -106.82145, 39.16055 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Sawatch Uplift, Central Colorado Trough, Piceance Basin, White River Uplift, Elk Uplift |
| Type of structure | Local |
| Structure description | Silver Fault, Contact Fault, Aspen Mountain Syncline, Tourtellotte Park Uplift |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1884 |
| Discoverer | John A. Storm And Others (Claimants) |
| District name | Aspen (Roaring Fork) District |
|---|
| Ownership category | Private |
|---|
| Type of workings | Underground |
|---|---|
| Length | 2529.84M |
| Overall depth | 202.69M |
| Overall length | 396.24M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D009437 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0080970109 |
SPURR, J.E., 1898, GEOLOGY OF THE ASPEN DISTRICT, COLORADO: USGS MON. 31, P. 176-177
BRYANT, BRUCE, 1971, GEOLOGIC MAP OF THE ASPEN QUADRANGLE, PITKIN COUNTY, COLORADO: USGS MAP GQ-933.
BRYANT, BRUCE, 1972, MAP SHOWING MINES, PROSPECTS, AND AREAS OF SIGNIFICANT SILVER, LEAD, AND ZINC PRODUCTION IN THE ASPEN QUADRANGLE, PITKIN COUNTY, COLORADO: USGS MAP I-785-D
BLM MINERAL SURVEY MS 3849, 3762
| Subject category | Comment text |
|---|---|
| Deposit | ORE ON CONTACT FAULT IS LOW GRADE, FE-STAINED AND CONTAINS LARGE DISADVANTAGEOUS AMOUNT OF BARITE. RICHER ORE WITH LESS BARITE OCCURS IN DOLOMIZED LIMESTONE IN STEEPLY DIPPING FRACTURED ZONES CUTTING THE CONTACT FAULT. IN OK MINE, MINERALIZED ZONE WAS FOLLOWED UP THRU CASTLE BUTTE LIMESTONE TO BELDEN SHALE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-SEP-1982 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.