| Deposit ID | 10101845 |
|---|---|
| MRDS ID | D010297 |
| Record type | Site |
| Current site name | Little Eddy Quarry |
| Related records | 10118455 |
| Geographic coordinates: | -105.05335, 39.18889 (WGS84) |
|---|---|
| Elevation | 2713 |
| Relative position | 16.5 MILES S 40 W FROM CASTLE ROCK |
Political divisions (FIPS codes)
Douglas(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Dakan Mountain(quadrangle 1:24,000 scale)
Bailey(quadrangle 1:100,000 scale)
Denver(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper South Platte(hydrologic unit)
South Platte(hydrologic accounting unit)
South Platte(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Pike and San Isabel National Forests(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Douglas |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 010S | 069W | 12 | SE OF SE | Colorado |
| Commodity | Importance |
|---|---|
| Feldspar | Primary |
| REE Critical | Tertiary |
| Thorium | Tertiary |
| Materials | Type of material |
|---|---|
| Microcline | Ore |
| Allanite | Gangue |
| Fluorite | Gangue |
| Thorite | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| Rock unit name | Pikes Peak Granite;Pegmatite |
| Rock description | Pikes Peak Granite;Pegmatite |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| Rock unit name | Pikes Peak Granite;Pegmatite |
| Rock description | Pikes Peak Granite;Pegmatite |
| (1) | -105.05335, 39.18889 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Front Range Uplift, Pikes Peak Batholith, Rampart Range Uplift |
| Type of structure | Local |
| Structure description | Perry Park-Jarre Canyon Fault, Rampart Range Fault, Manitou Park Half Graben |
| Length | 45.72M |
|---|---|
| Width | 18.29M |
| Development status | Past Producer |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| Year of last production | 1948 |
| District name | Devils Head Pegmatite District |
|---|
| Ownership category | National Forest |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | M And S, Inc. |
| Home office | Denver, Co. |
| First year | 1948 |
| Type of workings | Surface |
|---|---|
| Overall depth | 1.83M |
| Overall length | 9.14M |
| Overall width | 0.91M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010297 |
MEEVES, H.C., AND OTHERS, 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: USBM IC-8298, P. 24-25.
BRYANT, BRUCE, AND OTHERS, 1981, GEOLOGIC MAP OF THE DENVER 1X2 QUADRANGLE, NORTH-CENTRAL COLORADO: USGS MAP I-1163.
HEINRICH, E.W., 1957, PEGMATITE PROVINCES OF COLORADO: COLORADO SCHOOL MINES QUART., V. 52, NO. 4, P. 1-22.
TRIMBLE, D.E., AND MACHETTE, M.N., 1979, GEOLOGIC MAP OF THE COLORADO SPRINGS-CASTLE ROCK AREA, FRONT RANGE URBAN CORRIDOR, COLORADO: USGS MAP I-857-F.
COLO. DIV. MINES ANN. OPERATOR REPT.
| Subject category | Comment text |
|---|---|
| Deposit | UNZONED PEGMATITE TRENDING N 75 W |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1983 | 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.