Alameda
California · Tuolumne County
Unconfirmed Gold Past Producer Underground
Documented shaft/adit evidence
Mines with Documented Adits
Records with a documented adit. · 1895 records
An adit is a nearly horizontal passage from the surface into a mine.
Alaska Mine
Arizona · Santa Cruz County
Unconfirmed Silver Past Producer
Documented shaft/adit evidence
Alaskan Mine
Arizona · La Paz County
Unconfirmed Gold Past Producer Underground
Documented adit evidence
Albatross Mine
Arizona · Pima County
Unconfirmed Gold Producer Underground
Documented shaft/adit evidence
Albatross Mine
Arizona · Pima County
Unconfirmed Gold Past Producer
Documented shaft/adit evidence
Aldrich Mine
Nevada · Pershing County
Unconfirmed Silver Past Producer Underground
Documented adit evidence
Alexander
California · Mono County
Unconfirmed Copper Past Producer Underground
Documented adit evidence
Alhambra Mine
California · Alpine County
Unconfirmed Gold Past Producer Underground
Documented shaft/adit evidence
Alice Mine
Arizona · Pinal County
Mindat Confirmed Copper Producer Underground
Documented adit evidence
Alice Mine
Nevada · Elko County
Unconfirmed Molybdenum Past Producer
Documented adit evidence
Alice Property
Arizona · Pinal County
Mindat Confirmed Copper Past Producer
Documented adit evidence
Allen Mine
Nevada · Mineral County
Source Corroborated Mercury Past Producer Underground
Documented shaft/adit evidence
Allen Mine
Nevada · Mineral County
Source Corroborated Mercury Past Producer Underground
Documented shaft/adit evidence
Allison Mine
Arizona · Pima County
Source Corroborated Gold Past Producer Underground
Documented adit evidence
Allison Mine
Arizona · Pima County
Source Corroborated Gold Past Producer
Documented adit evidence
Allstate Prospect
California · Kern County
Unconfirmed Gold Past Producer
Documented shaft/adit evidence
Alpine
California · San Benito County
Unconfirmed Mercury Past Producer Mixed Underground/Surface
Documented adit evidence
Alpine Mine
Nevada · Pershing County
Unconfirmed Mercury Past Producer
Documented adit evidence
Alta
California · Calaveras County
Unconfirmed Gold Producer Mixed Underground/Surface
Documented adit evidence
Altitude
Nevada · Elko County
Unconfirmed Gold Past Producer
Documented adit evidence
Altitude Mine
Nevada · Elko County
Unconfirmed Gold Past Producer Underground
Documented adit evidence
Alto Mine
California · Calaveras County
Unconfirmed Gold Plant
Documented shaft/adit evidence
Alto Mine
California · Calaveras County
Unconfirmed Gold Producer Mixed Underground/Surface
Documented shaft/adit evidence
Alto Mine
California · Calaveras County
Unconfirmed Gold Past Producer
Documented shaft/adit evidence