| Deposit ID | 10310139 |
|---|---|
| MRDS ID | LW00139 |
| Record type | Site |
| Current site name | Derby Mine |
| Geographic coordinates: | -89.4812, 46.62694 (WGS84) |
|---|---|
| Relative position | MATCHWOOD TOWNSHIP |
Political divisions (FIPS codes)
Ontonagon(county)
Michigan(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Matchwood NW(quadrangle 1:24,000 scale)
Ontonagon(quadrangle 1:100,000 scale)
Iron River(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Ontonagon(hydrologic unit)
Southcentral Lake Superior(hydrologic accounting unit)
Southern Lake Superior(hydrologic subregion)
Great Lakes(hydrologic region)
Federal lands
Ottawa National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Michigan | Ontonagon |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Michigan | 49N | 41W | 19 | SW OF SW | Michigan |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Model code | 96 |
|---|---|
| USGS model code | Unassigned |
| Deposit model name | Native Cu |
| Mark3 model number | 99 |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt | ||||
| Rock unit name | Portage Lake Volcanics | ||||
| Rock description | Portage Lake Volcanics | ||||
| |||||
| (1) | -89.4812, 46.62694 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Syncline |
| General form | IRREGULAR |
|---|---|
| Strike | 45 N |
| Dip | 45 N |
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Year of first production | 1852 |
| Year of last production | 1865 |
| District name | Keweenaw Copper District |
|---|
| Year | 1865 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1852-1865 | ||||||||||||||
| |||||||||||||||
JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, ONTONAGON COUNTY, P. 66-68, SITE ID # 660029, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
UNDERGROUND MINE INVENTORY
| Subject category | Comment text |
|---|---|
| Deposit | SOME OLD MAPS SHOW THAT TREMONT OWNED LANDS WITH TEST PITS IN SE OF NW SECTION 25 |
| Deposit | VEIN STRIKE REPORTED AS N 40E, DIP 45 N |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 06-AUG-2002 | Anderson, Arlene (M. Gere) | Michigan Department of Natural Resources |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.