| Deposit ID | 10216458 |
|---|---|
| MRDS ID | ISM0374 |
| MAS/MILS ID | 0121050015 |
| Record type | Site |
| Current site name | Silver City |
| Related records | 10024648 |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -81.90295, 27.80031 (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
Bradley Junction(quadrangle 1:24,000 scale)
Bartow(quadrangle 1:100,000 scale)
Fort Pierce(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Alafia(hydrologic unit)
Tampa Bay(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 | 10 | C C C | 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) | -81.90295, 27.80031 |
|---|
| Thickness | 6.1M | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | 2640M | ||||||||||||||||||||||||||||||||||
| Width | 2640M | ||||||||||||||||||||||||||||||||||
| Area | 2506HA | ||||||||||||||||||||||||||||||||||
| Depth to top | 6.1M | ||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||
| Operation type | Surface |
|---|---|
| Development status | Plant |
| Commodity type | Both |
| Significant | No |
| Discovery year | 1906 |
| Mining method | Strip-Level |
| Year of first production | 1930 |
| 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-Operator |
|---|---|
| Owner | G. And H Holdings Inc. |
| ID | 800186 |
| Interest | 100 |
| Home office | Florida |
| Year | 1988 |
| Year | 1970 |
|---|---|
| Description | Production Data For 1970-1980 May Be 4918000 Mt Ore |
| Year | 1971 |
|---|---|
| Description | Combined Data For Silver City And Watson 4753000 Mt Ore |
| Year | 1973 |
|---|---|
| Description | 4745000 Mt Ore |
| Year | 1974 |
|---|---|
| Accuracy | Estimate |
| Description | Estimate 4079000 Mt Ore |
| Year | 1975 |
|---|---|
| Description | 5296000 Mt Ore |
| Year | 1976 |
|---|---|
| Description | 5330000 Mt Ore |
| Year | 1977 |
|---|---|
| Description | 5687000 Mt Ore |
| Year | 1978 |
|---|---|
| Description | 5072000 Mt Ore |
| Year | 1979 |
|---|---|
| Description | 3319000 Mt Ore |
| Year | 1980 |
|---|---|
| Description | 5237000 Mt Ore |
| Year | 1981 |
|---|---|
| Description | 2735000 Mt Ore |
| Year | 1982 |
|---|---|
| Description | 2378000 Mt Ore |
| Year | 1983 |
|---|---|
| Description | 98000 Mt Ore |
| Year | 1984 |
|---|---|
| Description | Closed |
| Year | 1985 |
|---|---|
| Description | Closed |
| Year | 1986 |
|---|---|
| Description | Closed |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0121050015 | |
| USGS | Mineral Resources Data System | MRDS | ISM0374 | MAS references MRDS |
| Mine Safety and Health Administration | MSHA | MSHA | 0800186 |
JERRY BALL, ACCOUNTANT FOR ESTECH, INC.; 8/20/87 TELEPHONE
CONVERSATION WITH LEE OSMONSON.
CENTRAL FLA. PHOSPHATE INDUSTRY AREAWIDE IMPACT ASSESSMENT
PROGRAM, EXISTING LAND USE, VOL IV, PREPARED FOR U.S.E.P.A.
TEXAS INSTRUMENTS INC, JUNE 1977.
COMPANY VISIT IN JANUARY 1985; AVAILABLE UPON REQUEST FROM
SWIFT AGRICULTURAL CHEMICALS CORP., ANNUAL REPORT, 1976
PHILLIPS PETROLEUM CO. MINING MASTER PLAN FOR MANATEE COUNTY
FLORIDA. SUBMITTED TO THE MANATEE COUNTY ZONING BOARD
ZELLARS-WILLIAMS INC.,EVALUATION OF THE PHOSPHATE DEPOSITS
OF FLORIDA USING THE MINERALS AVAILABILITY SYSTEM, BUMINES
OPEN FILE REPORT 112-78, NTIS: PB 286 648/AS, 1978, 199 PP.
GENERAL HIGHWAY MAP, POLK COUNTY FLORIDA DEPART. OF TRANSP.
BRADLEY JUNCTION, HOMELAND, MULBERRY QUADRANGLES 7 1/2
MINUTE SERIES, U.S.G.S., 1949, 1952, 1949.
| 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 02/15/1991 |
|---|---|
| MSHA mine ID | 0800186 |
| Mine name (MSHA) | Silver City Mine |
| Current operator | Estech Inc |
| Current controller (parent) | C & G Holdings Ii Inc |
| 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.