| Deposit ID | 10101795 |
|---|---|
| MRDS ID | D009435 |
| Record type | Site |
| Current site name | Iowa Chief Mine |
| Alternate or previous names | Claim: Iowa Chief |
| Related records | 10289166 |
| Geographic coordinates: | -106.82423, 39.16193 (WGS84) |
|---|---|
| Elevation | 3127 |
| Relative position | 1.8 MILES S 10 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 | 085W | 24 | SE | Colorado |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| 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 |
| Rock unit name | Leadville Limestone (Castle Butte Member);Belden Formation |
| Rock description | Leadville Limestone (Castle Butte Mbr);Belden Formation |
| (1) | -106.82423, 39.16193 |
|---|
| 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, Silver Bell Fault, Burro Fault |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1882 |
| Discoverer | James Lyons And Others (Claimants) |
| District name | Aspen (Roaring Fork) District |
|---|
| Ownership category | Private |
|---|
| Type of workings | Underground |
|---|---|
| Length | 1097.28M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D009435 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0080970100 |
SPURR, J.E., 1898, GEOLOGY OF THE ASPEN DISTRICT, COLORADO: USGS MON. 31, P. 173-174
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 2246
| Subject category | Comment text |
|---|---|
| Deposit | ALTHO ADJACENT TO CAMP BIRD MINE, IOWA CHIEF ORE OCCURRENCE CONTRASTS IN THAT IT IS FOUND ALONG SILVER FAULT INSTEAD OF CONTACT FAULT. MINERALIZED ZONE LIES IN FAULT BLOCK DISPLACED DOWNWARD AND BOUNDED BY NW-STRIKING, SW-DIPPING SILVER BELL FAULT ON NORTH AND BY EAST-WEST-STRIKING, NORTH-DIPPING BURRO FAULT ON SOUTH. ORE ALSO OCCURS IN MINOR SLIPS IN LIMESTONE PARALLEL TO AND BELOW SILVER FAULT. |
| 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.