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Abandoned mines › Florida
Abandoned mine inventory

Abandoned mines in Collier County, Florida

Collier County, Florida has 14 mine and prospect features on USGS topographic maps published 1958–1987. MSHA's register carries 21 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Collier 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)
14
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
21
0 features carry a name0 prospect pits7 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
    4 28.6%
  2. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    10 71.4%
MSHA-registered mines with status Abandoned21 on register
  1. 951 Pit
    Surface metal/non-metal · Harper Brothers Inc · MSHA ID 0801114
    Abandoned
  2. Aggrisource
    Surface metal/non-metal · Earth Tech Enterprises Inc · MSHA ID 0801326
    Abandoned
  3. Borrow Pit No 1
    Surface metal/non-metal · White Construction Company Inc · MSHA ID 0801001
    Abandoned
  4. Collier Pit #1
    Surface metal/non-metal · Security Estates Inc · MSHA ID 0800099
    Abandoned
  5. Golden Gate Quarry
    Facility metal/non-metal · Florida Rock Corp · MSHA ID 0800344
    Abandoned
  6. Longan Lakes
    Surface metal/non-metal · Big Island Excavating Inc · MSHA ID 0801293
    Abandoned
  7. Mule Pen Quarry Corporation
    Surface metal/non-metal · Mule Pen Quarry Corp · MSHA ID 0800546
    Abandoned
  8. Naples Limerock North
    Surface metal/non-metal · Warren Brothers Company Inc · MSHA ID 0800602
    Abandoned
  9. Naples Limerock Quarry
    Surface metal/non-metal · Highway Pavers Inc · MSHA ID 0800620
    Abandoned
  10. Naples Limerock South
    Surface metal/non-metal · Ashland-Warren Inc · MSHA ID 0800058
    Abandoned
  11. Naples Quarry
    Surface metal/non-metal · Florida Rock Industries Inc · MSHA ID 0801109
    Abandoned
  12. North Quarry
    Surface metal/non-metal · Highway Pavers Inc · MSHA ID 0800939
    Abandoned
  13. Orangetree Mine
    Surface metal/non-metal · RDMC · MSHA ID 0801333
    Abandoned
  14. ROCK PIT # 1
    Surface metal/non-metal · Harmon Brothers Rock Company Inc · MSHA ID 0801025
    Abandoned
  15. Sabal Palm Quarry
    Surface metal/non-metal · Southern Sand & Stone Inc · MSHA ID 0801223
    Abandoned
  16. Sanders Pit
    Surface metal/non-metal · Sea Con Industries Inc · MSHA ID 0801100
    Abandoned
  17. South Grove Mine
    Surface metal/non-metal · Earth Tech Enterprises Inc. · MSHA ID 0801419
    Abandoned
  18. VALE MINE
    Surface metal/non-metal · BIG ISLAND EXCAVATING INC. · MSHA ID 0801328
    Abandoned
  19. Vineyards
    Surface metal/non-metal · Southern Sand & Stone Inc · MSHA ID 0801138
    Abandoned
  20. WILLOW RUN QUARRY
    Surface metal/non-metal · Better Roads, Inc. · MSHA ID 0801050
    Abandoned
  21. Yard 3 Lely Development
    Surface metal/non-metal · South Florida Excavation, Inc. · MSHA ID 0801387
    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
Gravel/Borrow Pit - Undifferentiated 5
Disturbed Surface 4
Quarry 2
Quarry 2
Gravel Pit 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.