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Abandoned mines › Michigan
Abandoned mine inventory

Abandoned mines in Schoolcraft County, Michigan

Schoolcraft County, Michigan has 101 mine and prospect features on USGS topographic maps published 1958–1985; 1 of the features carry a name on the map. 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 Schoolcraft 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)
101
Mine openings
0
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
21
1 features carry a name0 prospect pits25 quadrangle maps, published 1958–1985 0 MSHA mines abandoned and sealed
What the features are
  1. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    99 98.0%
  2. Dumps, tailings, spoil and gob
    what mining left above ground
    2 2.0%
Named features on the maps1 named · from the USGS compilation
Name on map Feature
Calspar Quarry Pool Quarry

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 Abandoned21 on register
  1. Blaney Park Pit #30
    Surface metal/non-metal · Wiggins & Sons Gravel Company · MSHA ID 2002257
    Abandoned
  2. Crusher #1
    Surface metal/non-metal · Manistique Rentals Inc · MSHA ID 2002612
    Abandoned
  3. Currans Pit
    Surface metal/non-metal · Schnurer Excavators Inc · MSHA ID 2002374
    Abandoned
  4. Finlay Screen Plant #2
    Surface metal/non-metal · Stephen Hartman Excavating, Inc. · MSHA ID 2003617
    Abandoned
  5. Fintec Screen Plant
    Surface metal/non-metal · Zellar Exc. Inc. · MSHA ID 2003370
    Abandoned
  6. Marble Head Pit
    Surface metal/non-metal · Charles L Kinsul · MSHA ID 2002692
    Abandoned
  7. Mobile Crushing Plant
    Surface metal/non-metal · Hiawatha Shores Aggregates & Crushing · MSHA ID 2003461
    Abandoned
  8. Neadow Pit
    Surface metal/non-metal · Cooks Sand & Gravel · MSHA ID 2001770
    Abandoned
  9. Northfork Construction Co., Inc.
    Surface metal/non-metal · Northfork Construction Co., Inc. · MSHA ID 2003459
    Abandoned
  10. Northfork Construction Company #2
    Surface metal/non-metal · Northfork Construction Company, Inc. · MSHA ID 2003602
    Abandoned
  11. NORTHFORK SAND & GRAVEL
    Surface metal/non-metal · NORTHFORK SAND & GRAVEL · MSHA ID 2003360
    Abandoned
  12. Notebloom Pit
    Surface metal/non-metal · Proksch Construction Company · MSHA ID 2002585
    Abandoned
  13. PORTABLE WASH PLANT
    Surface metal/non-metal · V P Sand & Gravel Inc · MSHA ID 2003019
    Abandoned
  14. Sandvik Qi 430
    Surface metal/non-metal · Desjarden Excavating, Inc. · MSHA ID 2003610
    Abandoned
  15. Schoolcraft County Pit
    Surface metal/non-metal · Schoolcraft County Road Commission · MSHA ID 2001761
    Abandoned
  16. Schoolcraft County Pits
    Surface metal/non-metal · Jackie Foster Inc · MSHA ID 2002471
    Abandoned
  17. Schoolcraft County Pits
    Surface metal/non-metal · A Lindberg & Sons Inc · MSHA ID 2002690
    Abandoned
  18. Schoolcraft County Pits
    Surface metal/non-metal · Proksch Construction Company · MSHA ID 2002693
    Abandoned
  19. UPS & G Portable Crusher #1
    Surface metal/non-metal · U P Sand & Gravel Inc · MSHA ID 2003299
    Abandoned
  20. Wash Plant #1
    Surface metal/non-metal · Manistique Rentals Inc · MSHA ID 2003021
    Abandoned
  21. Wienert Pit
    Surface metal/non-metal · Walter Sand & Gravel Inc · MSHA ID 2002691
    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 Pit 40
Gravel Pit 22
Sand Pit 18
Quarry 7
Sand Pit 6
Sand and Gravel Pit 3
Quarry 2
Tailings - Undifferentiated 1
Tailings - Pond 1
Clay Pit 1
Other counties in MichiganAll 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.