31. LB.31.c.3059(30) Reference (shelfmark): LB.31.c.3059(30) Title: Hydraulic gold mining - near Dutch Flat, California, C. P. R. R. Photographer: Russell, Andrew Joseph Scope & Content: View of miners operating hydraulic sluices. Collection Area: Printed Collections Languages: Not applicable Date Range: 1860s Extent: 1 item