| Deposit ID | 10014039 |
|---|---|
| MRDS ID | D010655 |
| Record type | Site |
| Current site name | Little Annie Placers |
| Alternate or previous names | Peterson and Brandt Placers, Claims: Peterson Placer, MS 74, Brandt Placer, MS 75 |
| Geographic coordinates: | -106.60282, 37.43141 (WGS84) |
|---|---|
| Elevation | 3461 |
| Relative position | 0.4 TO 0.55 MILES N 80 W FROM SUMMITVILLE |
Political divisions (FIPS codes)
Rio Grande(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Summitville(quadrangle 1:24,000 scale)
Antonito(quadrangle 1:100,000 scale)
Durango(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Alamosa-Trinchera(hydrologic unit)
Rio Grande Headwaters(hydrologic accounting unit)
Rio Grande Headwaters(hydrologic subregion)
Rio Grande(hydrologic region)
Federal lands
Rio Grande National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Rio Grande |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 037N;037N | 004E;003E | 30;25 | NW OF NW (30); NE OF NE (25) | Colorado |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite | ||||||
| Rock unit name | Quartz Latite Of South Mountain | ||||||
| Rock description | Quartz Latite Of South Mountain | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Unconsolidated Deposit > Sand and Gravel |
| Rock unit name | Alluvium;Colluvium |
| Rock description | Alluvium;Colluvium |
| (1) | -106.60282, 37.43141 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Volcanic Field |
| Type of structure | Local |
| Structure description | Platoro Caldera, Summitville Caldera, Summitville Fault, South Mountain Dome |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1870 |
| Discoverer | James L. Wightman, E. Baker, J. Cary French, Sylvester Reese, William Boran |
| Year of first production | 1875 |
| District name | Summit (Summitville) District |
|---|
| Ownership category | Private |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010655 |
PARKER, B.H., JR., 1974, GOLD PLACERS OF COLORADO: COLORADO SCHOOL OF MINES QUART., V. 69, NO. 4, P. 208-210.
PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.
LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.
BLM MINERAL SURVEYS MS 74, 75
| Subject category | Comment text |
|---|---|
| Deposit | AU IN ALLUVIUM AND COLLUVIUM ALONG WIGHTMAN FORK DERIVED FROM MINERALIZED QUARTZ LATITE IN SOUTH MTN DOME. NO PLACERS OR SIGNIFICANT VALLEY-FILL DEPOSITS IN NARROW CANYON BELOW CROPSY CREEK. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-1983 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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