Flume and Catchwater below Big Canon Dam, North Bloomfield Gravel Mining Co., Nevada Co.

Big Canon (Bowman) Dam, distant view, North Bloomfield Gravel Mining Company.

Union Diggings, Columbia Hill, Nevada Co.

Hydraulic Digging, Nevada County, Cal.

Malakoff Diggings, North Bloomfield Gravel Mining.

Mining for Gold at Jacksonville, on the road to Yosemite.

Mining for Gold at Jacksonville, on the road to Yosemite.

Big Oak, circum. 36 ft. at Big Oak Flat, - Tuolumne Co.

Big Oak, circum. 36 ft. at Big Oak Flat, - Tuolumne Co.

Big Oak, circum. 36 ft. at Big Oak Flat, - Tuolumne Co.

Hydraulic Mining - Behind the Pipes, in the Kennebeck Claim, Birchville, Nevada County.

Placer Mining - Columbia, Tuolumne Co., Mining out a ranch.

Placer Mining - Columbia, Tuolumne Co., interior of the dump-box.

Placer Mining - Columbia, Tuolumne Co., from the top of the dump-box.

Placer Mining - Columbia, Tuolumne Co., from the top of the dump-box.

Placer Mining, Columbia, Tuolumne Co. The Columbia Claim.

Placer Mining in Columbia Gulch, general views of the Columbia Claim, Tuolumne County.

Placer Mining - In the Boulder Range, Columbia, Tuolomne Co.

A Miner, "panning out."

Placer Mining, Brown's Flat, Tuolumne County.

Placer Mining at Volcano, Amador County, working in the dump-box.

Placer Mining at Volcano, Amador County.

Placer Mining at Volcano, Amador County, The dump and sluice.

Hydraulic Mining - The Palm Claim, Timbuctoo, Yuba County.

Hydraulic Mining - Timbuctoo Diggings, Yuba Co.

Hydraulic Mining - Timbuctoo Diggings, Yuba Co.

Hydraulic Mining - Timbuctoo Diggings, Yuba Co.

Hydraulic mining - the sluice.

Hydraulic mining - washing down the bank into the sluice.

Hydraulic Mining - washing down the bank into the sluice.