| Deposit ID | 10011673 |
|---|---|
| MRDS ID | D006754 |
| Record type | Site |
| Current site name | McMillan Group |
| Alternate or previous names | Courthouse vein system |
| Point of reference | Approximate |
|---|---|
| Geographic coordinates: | -105.4864, 37.5903 (WGS84) |
| Elevation | 3682 |
| Location accuracy | 1000(meters) |
| Relative position | 11 MILES N 8 W FROM BLANCA |
Political divisions (FIPS codes)
Huerfano(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Blanca Peak(quadrangle 1:24,000 scale)
Blanca Peak(quadrangle 1:100,000 scale)
Trinidad(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Huerfano(hydrologic unit)
Upper Arkansas(hydrologic accounting unit)
Upper Arkansas(hydrologic subregion)
Arkansas-White-Red(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 | Huerfano |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 028S;028S | 073W;072W | 25;30 | Colorado |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Bismuth Critical | Tertiary |
| Copper | Tertiary |
| Tellurium Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Hessite | Ore |
| Sylvanite | Ore |
| Model code | 82 |
|---|---|
| USGS model code | 22 |
| Deposit model name | Epithermal veins |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite |
| Rock unit name | Hornblende Diorite;Intermediate Stocks, Laccoliths, Plugs, Dikes, And Sills |
| Rock description | Hornblende Diorite;Intermediate Stocks, Laccoliths, Plugs, Dikes, And Sills |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Gneiss |
| Rock unit name | Granodiorite Gneiss;Metaquartzite |
| Rock description | Granodiorite Gneiss;Metaquartzite |
| Approximate (1) | -105.4864, 37.5903 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Sierra Blanca Massif, Rio Grande Rift Zone, Ft. Garland Embayment |
| Type of structure | Local |
| Structure description | Sangre De Cristo Mtns Thrust Fault |
| General form | TABULAR |
|---|---|
| Strike | VEINS N 7 W |
| Dip | VEINS 90 |
| Width | 18.29M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Blanca District District |
|---|
| Ownership category | National Forest |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D006754 |
VANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO: COLORADO MINERAL RESOURCES BD., P. 31.
ECKEL, E.B., 1961, USGS BULL. 1114, P. 322-323.
COLO. DIV. MINES 1901-02 BIENN. REPT., P. 97-98.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-APR-81 | Schwochow, Stephen D. | Colorado Geological Survey | |
| Updater | 01-MAY-83 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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