Columbia SE

2001

1:24k

Columbia SE

1949

1:24k

Columbia SE

1948

1:24k

Columbia SE

1948

1:24k

Columbia SE

1948

1:24k

Columbia SE

1948

1:24k

Map of Mother Lode Gold Belt in Tuolumne County Showing Mining Claims and Areal Geology 1934: Plate VIII

1934

Logan, C. A. (Clarence August), 1887-

1:63k

Columbia

1948

1:63k

Columbia

1948

1:63k

Standard

1949

1:24k