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Abandoned mines › Florida
Abandoned mine inventory

Abandoned mines in Lee County, Florida

Lee County, Florida has 42 mine and prospect features on USGS topographic maps published 1958–1987; 1 of the features carry a name on the map. MSHA's register carries 22 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Lee County, every OSMRE abandoned mine land problem in the county, and every MSHA-registered mine here with status Abandoned. Named features are listed below; unnamed ones are counted by type. Locations are deliberately not shown: this page says what abandoned workings are in the county, not where to find them. They are dangerous and should not be entered.

Mapped mine features (USGS)
42
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
22
1 features carry a name0 prospect pits10 quadrangle maps, published 1958–1987 0 MSHA mines abandoned and sealed
What the features are
  1. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    17 40.5%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    25 59.5%
Named features on the maps1 named · from the USGS compilation
Name on map Feature
ACL Quarry Quarry area

A name is the label printed beside the symbol on the map. "First mapped" is the earliest topographic edition that shows the symbol, which bounds the feature's age from above; it is not the date it was worked. Unnamed features (most prospect pits, adits and shafts carry no label) are in the counts above but not this list.

MSHA-registered mines with status Abandoned22 on register
  1. ALVA
    Surface metal/non-metal · Southwest Aggregates · MSHA ID 0801439
    Abandoned
  2. Alva Pit
    Surface metal/non-metal · White Construction Company Inc · MSHA ID 0800951
    Abandoned
  3. Bell Blvd Mine
    Surface metal/non-metal · Big Island Excavating Inc · MSHA ID 0801363
    Abandoned
  4. Bonita Grande Aggregates
    Surface metal/non-metal · BG Mine LLC · MSHA ID 0801198
    Abandoned
  5. Bonita Pit
    Surface metal/non-metal · Harper Brothers Inc · MSHA ID 0800949
    Abandoned
  6. Caloosa Limerock Mine
    Surface metal/non-metal · Florida Rock Industries Inc · MSHA ID 0800989
    Abandoned
  7. COASTAL MINING, INC.
    Surface metal/non-metal · Coastal Mining Inc · MSHA ID 0801197
    Abandoned
  8. Colonial Pit
    Surface metal/non-metal · Harper Brothers Inc · MSHA ID 0800950
    Abandoned
  9. Edison Pit
    Surface metal/non-metal · Whitehead Farms Inc · MSHA ID 0800838
    Abandoned
  10. Estero Quarry
    Surface metal/non-metal · Harper Brothers Inc · MSHA ID 0800037
    Abandoned
  11. Estero Quarry
    Surface metal/non-metal · RMC Florida Group LTD · MSHA ID 0801254
    Abandoned
  12. Fugate Mine No 1
    Surface metal/non-metal · Fugate Construction Company · MSHA ID 0800944
    Abandoned
  13. HARPER GREENMEADOWS QUARY
    Surface metal/non-metal · Florida Rock Industries Inc · MSHA ID 0801276
    Abandoned
  14. HWY 82 PIT
    Surface metal/non-metal · La Belle Limerock Company · MSHA ID 0801064
    Abandoned
  15. KIS-BURN MINING & DEV, INC.
    Surface metal/non-metal · Kis-Burn Mining & Development Inc · MSHA ID 0801257
    Abandoned
  16. KISMET PIT
    Surface metal/non-metal · Honc Construction Inc · MSHA ID 0801262
    Abandoned
  17. Lee County Mining & Materials Inc
    Surface metal/non-metal · Lee County Mining & Materials Incorporated · MSHA ID 0801320
    Abandoned
  18. Lee Mar Pit
    Surface metal/non-metal · Lee Mar Inc · MSHA ID 0801207
    Abandoned
  19. Millennium
    Surface metal/non-metal · Millennium Development Group Incorporated · MSHA ID 0801307
    Abandoned
  20. NELSON LAKE ROJECT
    Surface metal/non-metal · North Cape Land Corp · MSHA ID 0801256
    Abandoned
  21. Pit 12-026
    Surface metal/non-metal · J L Kelley Rock Company Inc · MSHA ID 0800952
    Abandoned
  22. Triple C Pit
    Surface metal/non-metal · Triple C Fill & Paving Company · MSHA ID 0800734
    Abandoned

Status and date are as reported to MSHA by the operator. Each mine's own page carries its accident, citation and inspection record.

By source vocabularythe publishers' own terms
Feature type Features
Disturbed Surface 16
Quarry 9
Gravel Pit 4
Gravel/Borrow Pit - Undifferentiated 4
Shell Pit 4
Sand Pit 3
Gravel Pit 1
Strip Mine 1
Other counties in FloridaAll counties →
How to read these numbers

A USGS feature is a symbol on a historical topographic map, there when the map was surveyed; it may since have been sealed, reclaimed, built over or reopened as a working mine, and the map does not say which. An OSMRE row is a problem the abandoned mine land program tracks, not a mine. An MSHA mine is a registered operation whose operator reported abandonment, a record that starts in the 1970s. The three overlap and are never added together. The county is assigned from each feature's coordinates against the Census 2023 county boundaries. The full method is on the national page.

Sources
  1. USGS, Consolidated Prospect- and Mine-Related Features from 7.5- and 15-Minute Topographic Quadrangle Maps of the United States (USMIN)
    597,612 point and area features digitized from about 106,350 historical topographic maps published 1886–2006; public domain (CC0). A feature is a map symbol, not a field-verified site, and the map does not say whether it was still worked.
  2. USGS Fact Sheet 2025–3003, The Abandoned Mine Inventory of the United States
    States that as of 2025 there is no comprehensive national inventory of abandoned mine features, and that the detailed national database now being built will not be published.
  3. OSMRE, Abandoned Mine Land Inventory System (e-AMLIS), public Problems layer
    One row per abandoned mine land problem in a problem area, with its type, funding program and reclamation status; mostly coal mined before the 1977 Surface Mining Control and Reclamation Act. Coordinates are the problem area's.
  4. MSHA, Mines dataset (Mine Data Retrieval System)
    Every mine registered with MSHA since the 1970s; a mine reads Abandoned or Abandoned and Sealed when its operator reported that status. Refreshed weekly.
  5. US Census Bureau, 2023 cartographic county boundaries (1:500,000)
    Each feature's county is assigned by its coordinates against these boundaries, not copied from the source file.
  6. GAO-20-238, Abandoned Hardrock Mines (March 2020)
    Federal agencies had identified at least 140,000 abandoned hardrock mine features on federal land and estimated more than 390,000 more not yet captured in their databases.
  7. Abandoned Hardrock Mine Reclamation (AHMR) Program, US Department of the Interior
    The program the USGS inventory is compiled for. Its appropriations and the 674,000 field-confirmed feature count on this page were provided by the program manager, Office of Environmental Policy and Compliance, and are cited with permission (2026-09-08).
  8. IMCC-NAAMLP Hardrock AML Report
    Page 48 carries the two figures this page leans on: USGS estimates 633,181 of the 725,690 mine features it recorded from historic topographic maps, 87 percent, are hardrock; and state and federal agencies have submitted more than 724,000 AML features to the national database being built, already more than the historic maps hold. Year-by-year AHMR funding is on page 35.