| Deposit ID | 10048596 |
|---|---|
| MRDS ID | MP00194 |
| Record type | Site |
| Current site name | Fortress Mountain |
| Geographic coordinates: | -120.9437, 48.17788 (WGS84) |
|---|---|
| Elevation | 2103 |
| Relative position | ABOUT 1.5 MI SOUTHWEST OF LYMAN LAKE |
Political divisions (FIPS codes)
Snohomish(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Suiattle Pass(quadrangle 1:24,000 scale)
Twisp(quadrangle 1:100,000 scale)
Concrete(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Sauk(hydrologic unit)
Puget Sound(hydrologic accounting unit)
Puget Sound(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
Mt. Baker-Snoqualmie National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
Glacier Peak Wilderness(Wilderness)
Wilderness FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Washington | Snohomish |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 031N | 015E | 24 | Washington |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Molybdenum | Secondary |
| Materials | Type of material |
|---|---|
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Covellite | Ore |
| Malachite | Ore |
| Molybdenite | Ore |
| Pyrite | Ore |
| Pyrrhotite | Ore |
| Chlorite | Gangue |
| Epidote | Gangue |
| Sericite | Gangue |
| Result | MANY SAMPLES ANALYZED. BEST AVERAGES OF SHALLOW DRILL HOLES ARE 0.34% CU |
|---|
| Model code | 79 |
|---|---|
| USGS model code | 21a |
| Deposit model name | Porphyry Cu-Mo |
| Mark3 model number | 2 |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite |
| Rock unit name | Cloudy Pass Pluton;Cloudy Pass Pluton |
| Rock description | Cloudy Pass Pluton;Cloudy Pass Pluton |
| (1) | -120.9437, 48.17788 |
|---|
| General form | SMALL PLUGS |
|---|---|
| Length | 121.92M |
| Width | 106.68M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Sampson District |
|---|
| Ownership category | National Wilderness |
|---|---|
| Area name | In Glacier Peak Wilderness In Mount Baker National Forest |
| Type | Operator |
|---|---|
| Owner | Bear Creek Mining Co. |
| First year | 1962 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | MP00194 |
GRANT, A.R., 1982, SUMMARY OF ECONOMIC GEOLOGY DATA FOR THE GLACIER PEAK WILDERNESS, CHELAN, SNOHOMISH, AND SKAGIT COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-408, P. 22-24.
STOTELMEYER, R.B., JOHNSON, F.L., MCHUGH, E.L., FEDERSPIEL, F.E., DENTON, D.K., JR., AND STEBBINS, S.A., 1982, MINERAL INVESTIGATION OF THE GLACIER PEAK WILDERNESS AND ADACENT AREAS, CHELAN, SKAGIT, AND SNOHOMISH COUNTIES, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT 89-82, P. 22.
CHURCH, S.E., FORD, A.B., FLANIGAN, V.J., AND STOTELMEYER, R.B., 1984, MINERAL RESOURCE POTENTIAL OF THE GLACIER PEAK WILDERNESS AND ADJACENT AREAS, CHELAN, SKAGIT, AND SNOHOMISH COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-1652-A, SCALE 1:100,000.
TABOR, R.W., BOOTH, D.B., VANCE, J.A., FORD, A.B., AND ORT, M.H., 1988, PRELIMINARY GEOLOGIC MAP OF THE SAUK RIVER 30 BY 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 88-692, SCALE 1:100,000.
| Subject category | Comment text |
|---|---|
| Deposit | DIMENSIONS GIVEN ARE FOR HIGHEST GRADE OF 2 PLUGS |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1992 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.