California Gold Rush Photo: Excavation Techniques

California Gold Rush Photo: Excavation Techniques

Excavation Techniques

Using jets of water, miners attempt to extract gold from bluffs at Dutch Flat, California. Unknown photographer, between 1857 and 1870. Public domain.

Excavation Techniques

Excavation Techniques

Excavation Techniques

Excavation Techniques

Excavation Techniques

Excavation Techniques

Excavation Techniques

Excavation Techniques

Excavation Techniques

Excavation Techniques