| Deposit ID | 10087976 |
|---|---|
| MRDS ID | D011603 |
| Record type | Site |
| Current site name | Capitol City Mine |
| Alternate or previous names | Patented Claims: Capitol City, MS 1148, Capitol City No. 2, MS 1149, Lilly, MS 1559, Unpatented Claims: Crusader, Old Glory, High Stepper, Panhandle, Freeholder, Sunny Chief, East End, Laddie Boy, Monkey Shine |
| Related records | 10142356 |
| Geographic coordinates: | -107.47035, 38.0175 (WGS84) |
|---|---|
| Elevation | 3237 |
| Relative position | 8.4 MILES S 85 W FROM LAKE CITY |
Political divisions (FIPS codes)
Hinsdale(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Uncompahgre Peak(quadrangle 1:24,000 scale)
Montrose(quadrangle 1:100,000 scale)
Montrose(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Gunnison(hydrologic unit)
Gunnison(hydrologic accounting unit)
Gunnison(hydrologic subregion)
Upper Colorado(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Colorado | Hinsdale |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 044N | 006W | 36 | Colorado |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| Zinc Critical | Primary |
| Copper | Primary |
| Gold | Secondary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Pyrite | Ore |
| Sphalerite | Ore |
| Chlorite | Gangue |
| Quartz | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Monzonite | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite |
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite |
| Rock unit name | Eureka Member Of Sapinero Mesa Tuff;Biotite-Quartz Latite Of Burns Member Of Silverton Volcanics;Intrusive Rocks--Monzonite Porphyry Zr Fiss. Track 23.3;Intrusive Rocks--Rhyolite |
| Rock description | Eureka Member Of Sapinero Mesa Tuff;Biotite-Quartz Latite Of Burns Member Of Silverton Volcanics;Intrusive Rocks--Monzonite Porphyry Zr Fiss. Track 23.3;Intrusive Rocks--Rhyolite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite |
| (1) | -107.47035, 38.0175 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Volcanic Field, San Juan Depression |
| Type of structure | Local |
| Structure description | San Juan-Uncompahgre Calderas, Lake City Caldera, Eureka Graben |
| Thickness | 0.61M |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1882 |
| Discoverer | Iowa State Mining Company (Claimant) |
| Year of last production | 1954 |
| District name | Galena (Henson Creek) District |
|---|
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | Capitol City Mining Corp. |
| Home office | Gunnison, Co. |
| First year | 1972 |
| Type | Owner |
|---|---|
| Owner | Joe Gomez And Bob Trotter |
| Home office | Gunnison, Co. |
| First year | 1972 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D011603 |
IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 77-78.
LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.
COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.
BLM MINERAL SURVEYS MS 1148, 1149, 1559
COLORADO DIV. MINES ANNUAL OPERATOR REPTS.
| Subject category | Comment text |
|---|---|
| Deposit | MINE LIES NW OF LAKE CITY CALDERA RIM IN UNCOMPAHGRE CALDERA INFILL SEQUENCE, CONSISTING OF EUREKA MEMBER RHYOLITE AND BURNS MEMBER QUARTZ LATITE. SOUTH OF MINE, SEQUENCE IS INTRUDED AND ALTERED BY MONZONITE PORPHYRY AND RHYOLITE PLUGS. STRIKE OF MAIN VEIN IS N 20 W, 80 NE, BUT IN MIDDLE LEVEL IT SPLITS WESTWARD AND TRENDS N 40 W, 70 NE. DEPOSIT LIES IN SLACK'S (1980) QUARTZ/BASE-METAL ASSEMBLAGE, INNER QUARTZ-CHALCOPYRITE ZONE. NW TREND SUGGESTS IT MAY BE RADIAL TO LAKE CITY CALDERA RING FAULT. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-APR-1984 | 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.