Keystone Mine - Amador City California

Keystone Mine - Amador City California
Keystone Mine - Amador City California

Photo Description

Sign at site reads:

Founded in 1851 from many claims. One of the most profitable and longest running mines. Joining with South Spring Hill Mine working till 1942. East shaft worked till 1952. Reached a depth of 2680 feet. Employed 100 men and produced 24 million in gold.