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Abandoned mines › California
Abandoned mine inventory

Abandoned mines in Sacramento County, California

Sacramento County, California has 224 mine and prospect features on USGS topographic maps published 1907–1992, including 3 mine openings (shafts, adits and air shafts) and 9 prospect pits. MSHA's register carries 20 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Sacramento 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)
224
Mine openings
3
OSMRE problems unreclaimed
0
MSHA mines marked abandoned
20
0 features carry a name9 prospect pits25 quadrangle maps, published 1907–1992 0 MSHA mines abandoned and sealed
What the features are
  1. Mine openings
    shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
    3 1.3%
  2. Prospect pits and trenches
    shallow exploration diggings that never became a mine
    9 4.0%
  3. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    10 4.5%
  4. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    51 22.8%
  5. Dumps, tailings, spoil and gob
    what mining left above ground
    151 67.4%
MSHA-registered mines with status Abandoned20 on register
  1. American River Aggregates
    Surface metal/non-metal · American River Aggregates · MSHA ID 0404619
    Abandoned
  2. AMERICAN RIVER AGGREGATES
    Surface metal/non-metal · American River Aggregates · MSHA ID 0405206
    Abandoned
  3. AMERICAN RIVER AGGREGATES S&P
    Facility metal/non-metal · American River Aggregates · MSHA ID 0405194
    Abandoned
  4. CERTAINTEED
    Facility metal/non-metal · Certain Teed Corp · MSHA ID 0404692
    Abandoned
  5. Curtis Hanford Sand & Gravel
    Surface metal/non-metal · Curtis Hanford Sand & Gravel · MSHA ID 0405612
    Abandoned
  6. HANFORD
    Surface metal/non-metal · Curtis Hanford Sand & Gravel · MSHA ID 0402728
    Abandoned
  7. Jackson Pit
    Surface metal/non-metal · Elk Grove Ready-Mix Inc · MSHA ID 0405018
    Abandoned
  8. Perkins Pit And Mill
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0401780
    Abandoned
  9. Portable Crusher
    Surface metal/non-metal · M G R Construction · MSHA ID 0404693
    Abandoned
  10. Portable Crusher #1
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0405441
    Abandoned
  11. Prairie City
    Surface metal/non-metal · Teichert Aggregates · MSHA ID 0405501
    Abandoned
  12. Rancho Cordova #115
    Surface metal/non-metal · Rmc Pacific Materials · MSHA ID 0404281
    Abandoned
  13. Rancho Murieta Crusher
    Surface metal/non-metal · Operating Engineers Affirmative Action Trust · MSHA ID 0404310
    Abandoned
  14. RECYCLED CONCRETE
    Surface metal/non-metal · California Concrete Crushing & Recycling · MSHA ID 0405480
    Abandoned
  15. Robertson Sand & Gravel
    Surface metal/non-metal · Robertson Sand & Gravel · MSHA ID 0401928
    Abandoned
  16. SANTOS PIT
    Facility metal/non-metal · River City Aggregates · MSHA ID 0405251
    Abandoned
  17. Schneider Historic Mine
    Surface metal/non-metal · Joe Hardesty · MSHA ID 0405265
    Abandoned
  18. Van Vleck Mine
    Surface metal/non-metal · American Olean Tile Company Inc · MSHA ID 0404550
    Abandoned
  19. White Rock
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0405728
    Abandoned
  20. Yost Sand Pit
    Surface metal/non-metal · Yost Construction · MSHA ID 0404285
    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
Tailings - Dredge 132
Gravel Pit 18
Gravel Pit 15
Tailings - Undifferentiated 14
Prospect Pit 9
Disturbed Surface - Pit 7
Clay Pit 7
Mine Dump 5
Borrow Pit 3
Borrow Pit 3
Mine Shaft 3
Gravel/Borrow Pit - Undifferentiated 2
Gravel/Borrow Pit - Undifferentiated 1
Disturbed Surface 1
Clay Pit 1
Quarry 1
Open Pit Mine 1
Open Pit Mine or Quarry 1
Other counties in CaliforniaAll 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.