| Deposit ID | 10252767 |
|---|---|
| MAS/MILS ID | 0530570013 |
| Record type | Site |
| Current site name | Twins Group |
| Alternate or previous names | Twins No.1, Pedro, Deer, Cougar, Twins No.2, Sandy, Mona, Floats, Grover, Bear, Antelope |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -121.90264, 48.62671 (WGS84) |
| Elevation | 900 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Skagit(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Twin Sisters Mountain(quadrangle 1:24,000 scale)
Mount Baker(quadrangle 1:100,000 scale)
Concrete(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Nooksack(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)
| Country | State | County |
|---|---|---|
| United States | Washington | Skagit |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 036 N | 007 E | 09 | NE | Washington |
| Commodity | Importance |
|---|---|
| Chromium Critical | Tertiary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Chromite | Unknown |
| Enstatite | Unknown |
| Magnetite | Unknown |
| Olivine | Unknown |
| Serpentine | Unknown |
| Ore Body (1) | -121.90264, 48.62671 |
|---|
| Thickness | 9999M | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | 999999M | ||||||||||||||||||||||||||||||
| Width | 999999M | ||||||||||||||||||||||||||||||
| Area | 92HA | ||||||||||||||||||||||||||||||
| Depth to top | 99999M | ||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||
| Operation type | Surface |
|---|---|
| Development status | Occurrence |
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1940 |
| District name | Sisters |
|---|
| Type of mineral rights | Located Claim |
|---|---|
| Type of mineral rights | Unknown |
| Ownership category | National Forest |
|---|
| Type | Unknown |
|---|---|
| Owner | Geo Peterson |
| Home office | Washington |
| Year | 1975 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0530570013 |
GAUDETTE, H.E., GEOCHEMISTRY OF THE TWIN SISTERS
ULTRAMAFIC BODY, WASHINGTON, UNPUB. THESIS, UNIV. OF
ILLINOIS, 1953.
WASH, DIV. OF MINES AND GEOL. BULL. 37, 1956.
CHROMITE DEPOSITS OF TWIN SISTERS MTS., WASHINGTON.
SHINE MING CO CONFIDENTIAL RPT 1942 FILES USBM WFOC
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 27-FEB-84 | Lucas, J.M. | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.