Abandoned mines in Yuba County, California

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   39 28.9%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   32 23.7%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   5 3.7%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   12 8.9%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   47 34.8%

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.

1. Beebe Sand

   Surface metal/non-metal · Gary Beebe Industries, Inc. · MSHA ID 0405512
   Abandoned 2008-06-03
2. Blue Point Mine

   Surface metal/non-metal · Micro-Gold Engineering · MSHA ID 0404938
   Abandoned 1994-02-02
3. BLUE POINT MINE

   Surface metal/non-metal · Blue Point Rock Products · MSHA ID 0405433
   Abandoned 2002-08-12
4. Browns Valley Pit & Mill

   Surface metal/non-metal · E C Harryman & Son · MSHA ID 0402731
   Abandoned 1978-04-12
5. C R Jeffries Portable

   Surface metal/non-metal · C R Jeffries Construction Inc · MSHA ID 0405068
   Abandoned 1992-05-28
6. Coughlan Pit

   Surface metal/non-metal · Yuba River Sand & Gravel Inc · MSHA ID 0405062
   Abandoned 1990-10-22
7. Dantoni Pit

   Surface metal/non-metal · Trinco Inc · MSHA ID 0404241
   Abandoned 1993-07-01
8. Dantoni Rd

   Surface metal/non-metal · Kino Aggregates Incorporated · MSHA ID 0405545
   Abandoned 2017-08-08
9. Dantoni Road Pit

   Surface metal/non-metal · Yuba River Sand & Gravel · MSHA ID 0404287
   Abandoned 1996-07-20
10. Dredge 17

    Surface metal/non-metal · Cal Sierra Development Inc · MSHA ID 0402386
    Abandoned 2025-04-10
11. GBW-1

    Facility metal/non-metal · G B Western Inc · MSHA ID 0405263
    Abandoned 2003-02-28
12. Grand Mesa Pebbles Incorporated

    Surface metal/non-metal · Grand Mesa Pebbles Inc · MSHA ID 0405149
    Abandoned 1991-09-18
13. LONG BAR PIT

    Surface metal/non-metal · Dan Garcia Sand & Gravel · MSHA ID 0403862
    Abandoned 2004-03-31
14. Marysville Plant

    Surface metal/non-metal · Teichert Aggregates · MSHA ID 0405540
    Abandoned 2023-05-30
15. Patti No 1

    Surface metal/non-metal · David Mc Reynolds Enterprises · MSHA ID 0405155
    Abandoned 1992-04-17
16. Pennsylvania Mine Mill

    Facility metal/non-metal · Rogers Mining Company · MSHA ID 0403025
    Abandoned 1979-05-29
17. Placer Resources - Yuba

    Surface metal/non-metal · Placer Resources Corp · MSHA ID 0404767
    Abandoned 1989-01-12
18. Portable Crusher #2

    Surface metal/non-metal · Granite Construction Company · MSHA ID 0405711
    Abandoned 2011-08-01
19. Portable Rock Plant @ Hallwood #1224

    Surface metal/non-metal · Teichert Aggregates · MSHA ID 0405385
    Abandoned 2005-06-15
20. Retort & Gold Circuit

    Facility metal/non-metal · Yuba Natural Resources Inc · MSHA ID 0404361
    Abandoned 1989-12-11
21. River Rock Sand And Gravel

    Surface metal/non-metal · River Rock Construction Inc · MSHA ID 0404305
    Abandoned 1982-08-09
22. SPERKERT PIT

    Surface metal/non-metal · Linda Sand & Gravel Company · MSHA ID 0404288
    Abandoned 1999-04-16
23. Sylva

    Surface metal/non-metal · Sylva Sand & Gravel Inc · MSHA ID 0404643
    Abandoned 1983-09-07
24. TIMBUCTOO MINE

    Surface metal/non-metal · Dan Garcia · MSHA ID 0405348
    Abandoned 2000-08-04
25. Yuba Gold Field Plant

    Surface metal/non-metal · Baldwin Contracting Company Inc · MSHA ID 0404936
    Abandoned 1989-12-11
26. Yuba River Sand Plant

    Surface metal/non-metal · Yuba River Sand Co · MSHA ID 0402004
    Abandoned 1980-05-30
27. Yuba Silica

    Surface metal/non-metal · Yuba Silica Inc · MSHA ID 0404768
    Abandoned 1989-12-11
28. Yuba-Lowe Venture

    Surface metal/non-metal · Yuba-Lowe Venture · MSHA ID 0404429
    Abandoned 1981-12-08
29. ZNZ

    Surface metal/non-metal · Advanced Carbonate Technologies, LLC · MSHA ID 2602779
    Abandoned 2017-01-05

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

• San Bernardino County 14,976
• Inyo County 11,475
• Kern County 4,879
• Riverside County 3,227
• Mono County 2,946
• Siskiyou County 2,362
• Imperial County 1,232
• Mariposa County 1,079
• Tuolumne County 948
• San Diego County 901
• Calaveras County 840
• Shasta County 832

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.