| Deposit ID | 10290468 |
|---|---|
| MAS/MILS ID | 0190330022 |
| Record type | Site |
| Current site name | Willowbrook Shale Pit |
| Point of reference | Trench |
|---|---|
| Geographic coordinates: | -93.23211, 43.1531 (WGS84) |
| Elevation | 351 |
| Location accuracy | 1000(meters) |
Political divisions (FIPS codes)
Cerro Gordo(county)
Iowa(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mason City(quadrangle 1:24,000 scale)
Mason City(quadrangle 1:100,000 scale)
Mason City(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Winnebago(hydrologic unit)
Iowa(hydrologic accounting unit)
Upper Mississippi-Iowa-Skunk-Wapsipinicon(hydrologic subregion)
Upper Mississippi(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Iowa | Cerro Gordo |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 5th Principal | 096 N | 020 W | 08 | NENW | Iowa |
| Commodity | Importance |
|---|---|
| Clay | Primary |
| Trench (1) | -93.23211, 43.1531 |
|---|
| Operation type | Surface |
|---|---|
| Development status | Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Unknown |
|---|
| Type | Operator |
|---|---|
| Owner | Northwestern States Portland Cement Co. |
| ID | 1301121 |
| Home office | Iowa |
| Year | 1981 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0190330022 | |
| Mine Safety and Health Administration | MSHA | MSHA | 1301121 |
MSHA INSP FORM GIVES LOCATION AS 2 MILES SW OF MASON CITY
IOWA DOT GIVES LOCATION AS NE OF NW SEC 8 AND S2 OF SW SEC 5
1981 EXTENT MAY INCLUDE ADJACENT PITS IN SEC 16 AND 17
MSHA 1981 METAL-NONMETAL MINE FILE REF
IOWA DOT COUNTY MINE LOCATION BOOK IGS FILES
MSHA MINE INSPECTION FORM NO 1 INSP DATE 5-26-81
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-83 | Igs / Dh | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 09/05/1990 |
|---|---|
| MSHA mine ID | 1301121 |
| Mine name (MSHA) | Willowbrook Shale Pit |
| Current operator | Northwestern States Portland Cement Company |
| Current controller (parent) | Holcim Ltd |
| Mine type | Surface (Metal / non-metal) |
MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.
Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.