Photograph of the inside of a building at the tin mines owned by Colonel Robinson (father of A.P. Robinson, 8315 Lookout Mountain Avenue), Temescal, Riverside County (Corona), ca.1889. The worker in the foreground operates a hoist. A large drum in front of the man feeds cable to the lift in the background. Two large circular guages, one on either side of the man, indicate the position of the hoist. Three men are visible in the background. A narrow set of steep wooden steps leads to an upper level of the building.