Mining scene of a large group of miners posed while working on a rocky riverbed [California?]

View of about 30 men, including some Native Americans, with tools, working along a rocky riverbank. A diversion flume structure visible behind miners. Handwritten note accompanying photograph reads: "Gold mine of Walter Taylor, Taylorsville, Calif. 1849. Uncle Walter died here in 1850," though this information has been disputed, since Taylorsville in Plumas County was not active at this time. Possibly this is another location named Taylorsville or misinformation. See collection file for correspondence disputing location.