Expeditions & surveys; Railroad surveys; Hellgate River (Mont.); Floods
Lieutenant Mullan and party crossing the Hell-Gate River. This river being flooded, "his whole party and property were nearly lost in using a raft unmanageable in the swift current." Plate LVI.
Bridges; Columbia River -- History; Spokane River (Idaho and Wash.)
Highway bridge across the Spokane River east of its confluence with the Columbia. This portion of the road was flooded by the reservoir, requiring relocation of the road.