| Deposit ID | 10013862 |
|---|---|
| MRDS ID | D010392 |
| Record type | Site |
| Current site name | Spring Group |
| Alternate or previous names | Revis Mine, Claims: Spring No. 1, Spring No. 2, Lady Cora Hellen |
| Geographic coordinates: | -105.78533, 40.66859 (WGS84) |
|---|---|
| Elevation | 2475 |
| Relative position | 24.9 MILES N 36 W FROM ESTES PARK |
Political divisions (FIPS codes)
Larimer(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Boston Peak(quadrangle 1:24,000 scale)
Fort Collins(quadrangle 1:100,000 scale)
Greeley(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Cache La Poudre(hydrologic unit)
South Platte(hydrologic accounting unit)
South Platte(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Arapaho and Roosevelt National Forests(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Larimer |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 008N | 075W | 14,15 | NW (14) OF NE (15) | Colorado |
| Commodity | Importance |
|---|---|
| Uranium | Primary |
| Silver | Tertiary |
| Gold | Tertiary |
| Lead | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Pitchblende | Ore |
| Limonite | Gangue |
| Result | USGS/USBM SAMPLES CONTAINED TRACE AU, TRACE PB, 0.1 OZ/TON AG, 0.011% U3O8 |
|---|
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||||
| Rock unit name | Pegmatite | ||||||
| Rock description | Pegmatite | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist > Mica Schist |
| Rock unit name | Quartzofeldspathic Mica Schist And Gneiss And Hornblende Gneiss Undivided;Granitic Gneiss |
| Rock description | Quartzofeldspathic Mica Schist And Gneiss And Hornblende Gneiss Undivided;Granitic Gneiss |
| (1) | -105.78533, 40.66859 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Front Range Uplift, Sherman Batholith, Rawah Batholith |
| Type of structure | Local |
| Structure description | Ne-Trending Faults And Shear Zones |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1954 |
| Discoverer | S.L. And B.L. Lindsey (Claimants) |
| District name | Spencer Heights-Poudre Falls Area |
|---|
| Ownership category | National Forest |
|---|
| Type | Operator |
|---|---|
| Owner | Revis Brothers |
| Home office | Bellevue |
| First year | 1960 |
| Type | Owner |
|---|---|
| Owner | G. L. Lindsey |
| Home office | Bellevue |
| First year | 1960 |
| Type of workings | Surface/Underground |
|---|---|
| Overall depth | 24.69M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010392 |
PEARSON, R.C., AND OTHERS, 1981, MINERAL RESOURCES OF THE COMANCHE-BIG SOUTH, NEOTA-FLAT TOP, AND NEVER SUMMER WILDERNESS STUDY AREAS, NORTH-CENTRAL COLORADO: USGS OFR 81-578, P. 25-27
COLORADO DIV. MINES INF. REPT.
| Subject category | Comment text |
|---|---|
| Deposit | DEPOSIT FOUND AT CONTACT OF GRANITE OR GRANITIC GNEISS AND BIOTITE SCHIST. MINERALIZATION FOUND ON FRACTURE FACES ASSOCIATED WITH SHEAR ZONE TRENDING APPROX N 70 E. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-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.