938. Placer Mines. unknown placer. Sweeping bedrock with hydraulic. C. W. Erdlen photographer. Source: Harold Steinhoff

975. Placer Mines. Hydraulic in the Alma Placer Mining District.

1951. Placer Mines. Near Alma. Source: South Park Historical Foundation

1952. Placer Mines. Chinese working a placer mine near Fairplay. Source: South Park Historical Foundation

1953. Placer Mines. Near Alma. Source: South Park Historical Foundation

1954. Placer Mines. Near Alma. Copy of Sanborn post card F-891. Source: South Park Historical Foundation

1961. Placer Mines. Possibly Beaver Creek. Source: South Park Historical Foundation

1962. Placer Mines. Near Alma. Source: South Park Historical Foundation

1963. Placer Mines. Near Alma. Source: South Park Historical Foundation

1964. Placer Mines. Near Alma or Fairplay. Source: South Park Historical Foundation

1965. Placer Mines. Near Alma. Source: South Park Historical Foundation

1966. Placer Mines. Near Fairplay. Source: South Park Historical Foundation

1967. Placer Mines. Near Alma or Fairplay. Source: South Park Historical Foundation

2058. Placer Mines. Hydraulic mining near Alma. Source: South Park Historical Foundation

2469. Placer Mines. 1930s. Placer mine near Alma. Sanborn post card F 808. Source: Sanborn, Ltd.

2477. Placer Mines. Late 1930s. Near Alma. Sanborn post card F 859. Source: Sanborn, Ltd.

2478. Placer Mines. Late 1930s. Near Alma. Sanborn post card F 861. Source: Sanborn, Ltd.

2568. Placer Mines. Early 1900s. Near Fairplay. Post card. Source: Isaac S. Smith Family

2569. Placer Mines. Early 1900s. Near Fairplay. Post card. Source: Isaac S. Smith Family

2595. Placer Mines. Early 1900s. Placer mining near Fairplay. Post card. Source: Isaac S. Smith Family

2835. Placer Mines. 1936. Wadley placer near Fairplay. #204. Source: National Mining Hall of Fame and Museum

3236. Placer Mines. 1870s. Hydraulic mining in South Park. Stereo View. Credit: Ed & Nancy Bathke Collection

3237. Placer Mines. 1870s. William G. Chamberlain photo. Stereo View. . Credit: Ed & Nancy Bathke Collection

3238. Placer Mines. 1870s. William G. Chamberlain photo. 238 Stereo View. Credit: Ed & Nancy Bathke Collection

3264. Placer Mines. Circa 1870s. Fairplay placer workings across the river with Horseshoe Mountain in background. William G. Chamberlain photo. Stereo View. Credit: Ed & Nancy Bathke Collection.

3272. Placer Mines. Circa 1880s. Hydraulic mining near Alma. Underwood & Underwood photo. Stereo View. Credit: Ed & Nancy Bathke Collection

3274. Placer Mines. Circa 1880s. Gulch near Alma. T. C. Miller photo. Stereo View. Credit: Ed & Nancy Bathke Collection

3309. Placer Mines. Circa 1870s. Hydraulic mining. Valley of the Blue. W. C. Chamberlain photo. Stereo View. Credit: Ed & Nancy Bathke Collection.