| Deposit ID | 10240937 |
|---|---|
| MRDS ID | ISM0372 |
| MAS/MILS ID | 0121050017 |
| Record type | Site |
| Current site name | Rockland Mine |
| Related records | 10024646 |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -81.86675, 27.75421 (WGS84) |
| Elevation | 50 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Polk(county)
Florida(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Homeland(quadrangle 1:24,000 scale)
Bartow(quadrangle 1:100,000 scale)
Fort Pierce(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Peace(hydrologic unit)
Peace(hydrologic accounting unit)
Peace-Tampa Bay(hydrologic subregion)
South Atlantic-Gulf(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Florida | Polk |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Tallahassee | 031 S | 024 E | 25 | E2NESE | Florida |
| Commodity | Importance |
|---|---|
| Aluminum Critical | Tertiary |
| Fluorine-Fluorite Critical | Tertiary |
| Iron | Tertiary |
| Magnesite | Tertiary |
| Phosphorus-Phosphates | Primary |
| Uranium | Tertiary |
| Materials | Type of material |
|---|---|
| Collophane | Unknown |
| Dolomite | Unknown |
| Montmorillonite | Unknown |
| Quartz | Unknown |
| Ore Body (1) | -81.86675, 27.75421 |
|---|
| Thickness | 6.4M | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Depth to top | 6.1M | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| Area | 4756HA | ||||||
|---|---|---|---|---|---|---|---|
| |||||||
| Operation type | Surface |
|---|---|
| Development status | Plant |
| Commodity type | Both |
| Significant | No |
| Discovery year | 1920 |
| Mining method | Strip-Level |
| Year of first production | 1968 |
| Plant type | Beneficiation (Mill) |
| Plant subcategory | Flotation |
| Milling method | Flotation |
| District name | Central Florida Phosphate District |
|---|
| Type of mineral rights | Fee Ownership |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Sinochem, Usa, Chinese Government Fertilizer Trading Co. |
| ID | 800189 |
| Interest | 100 |
| Home office | Florida |
| Year | 1994 |
| Year | 1971 |
|---|---|
| Description | 5944500 Mt Ore/Yr |
| Year | 1973 |
|---|---|
| Description | 7581600 Mt Ore/Yr |
| Year | 1974 |
|---|---|
| Description | 8443300 Mt Ore/Yr |
| Year | 1975 |
|---|---|
| Description | 8778900 Mt Ore/Yr |
| Year | 1976 |
|---|---|
| Description | 8438700 Mt Ore/Yr |
| Year | 1977 |
|---|---|
| Description | 6873200 Mt Ore/Yr |
| Year | 1978 |
|---|---|
| Description | 5565800 Mt Ore/Yr |
| Year | 1979 |
|---|---|
| Description | 7034000 Mt Ore/Yr |
| Year | 1980 |
|---|---|
| Description | 8307000 Mt Ore/Yr |
| Year | 1981 |
|---|---|
| Description | 7511000 Not Available |
| Year | 1982 |
|---|---|
| Description | 1755000 Closed In May |
| Year | 1984 |
|---|---|
| Description | 1995400 Mt Ore/Yr (Opened April) |
| Year | 1985 |
|---|---|
| Description | 5541800 Mt Ore/Yr |
| Year | 1986 |
|---|---|
| Description | 5631500 Mt Ore/Yr |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0121050017 | |
| USGS | Mineral Resources Data System | MRDS | ISM0372 | MAS references MRDS |
| Mine Safety and Health Administration | MSHA | MSHA | 0800189 |
U.S. BUREAU OF MINES. COMPILATION OF PROPRIETARY, INDIVIDUAL
COMPANY, PRODUCTION STATISTICS (FOR THE YEARS 1985 AND
1986).
ZELLAR-WILLIAMS, INC. EVALUATION OF THE PHOSPHATE
DEPOSITS OF FLORIDA USING THE MINERALS AVAILABILITY
SYSTEMS, BUMINES OPEN FILE REPORT 112-78,NTIS: PB 286-648/AS
1978, 199 PP.
DAMES AND MOORE. USS AGRI-CHEMICALS/FREEPORT PHOSPHATE ROCK
COMPANY, SOUTH ROCKLAND AREA, POLK AND HARDEE COUNTIES,
FLORIDA. DEVELOPMENT OF REGIONAL IMPACT APPLICATION FOR
DEVELOPMENT APPROVAL, MARCH 1981.
EARTH SCIENCES, INC. URANIFEROUS PHOSPHATE RESOURCES AND
TECHNOLOGY AND ECONOMICS OF URANIUM RECOVERY FROM
PHOSPHATE RESOURCES, UNITED STATES AND FREE WOULD, DEP.
ENERGY CONTRACT GJBX-110(79) V. 2, JUNE 1979, 672 PP.
WORLD PHOSPHATES, FERTECOM, ZELLARS-WILLIAMS, INC., SRI
INTERNATIONAL, 1981.
USS AGRI-CHEMICALS. PERSONAL COMMUNICATION DURING COMPANY
VISIT IN JANUARY 1985; AVAILABLE UPON REQUEST FROM
B.J. ROBERSON, BUMINES-EFOC, DENVER, CO.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 05-APR-1995 | Hite, Alan G. | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 10/26/1995 |
|---|---|
| MSHA mine ID | 0800189 |
| Mine name (MSHA) | Rockland Mine |
| Current operator | U S Agri-Chemicals Corp |
| Current controller (parent) | Williams J M |
| 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.