| Deposit ID | 10278022 |
|---|---|
| MAS/MILS ID | 0550490060 |
| Record type | Site |
| Current site name | Optimo No.4 Mine |
| Alternate or previous names | Fearless |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -90.27731, 42.93311 (WGS84) |
| Elevation | 352 |
Political divisions (FIPS codes)
Iowa(county)
Wisconsin(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Linden(quadrangle 1:24,000 scale)
Dubuque North(quadrangle 1:100,000 scale)
Dubuque(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Pecatonica(hydrologic unit)
Rock(hydrologic accounting unit)
Rock(hydrologic subregion)
Upper Mississippi(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Wisconsin | Iowa |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 4th Principal | 005 N | 002 E | 05 | NESWSE | Wisconsin |
| Commodity | Importance |
|---|---|
| Lead | Tertiary |
| Zinc Critical | Tertiary |
| Ore Body (1) | -90.27731, 42.93311 |
|---|
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Year of first production | 1923 |
| District name | Upper Mississippi Valley |
|---|
| Type of mineral rights | Fee Ownership |
|---|
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | Optimo No.4 Mining Co. |
| Year | 1977 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0550490060 |
| Subject category | Comment text |
|---|---|
| Deposit | THE GRADE OF ORE WAS ABOUT 5-10 PERCENT ZN, 1 PERCENT PB. TOGETHER WITH SOUTH RULE, OPTIMO NO.4, AND NORTH RULE MINES, PRAIRIE MINE PRODUCED 500000-800000 TONS OF ORE.SOME ORE REM |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 25-NOV-1983 | Eastern Field Operations Center (EFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.