Marks, John H. (John Henry)2025-08-152025-08-15https://hdl.handle.net/11124/180918Mine report no. 1741.On cover: Snake River placers, American Falls, Idaho, 1915.Includes maps and photographs.Typescript (carbon copy).reportsmine mapsblack-and-white photographsengIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Placer mining -- Idaho -- Power CountyMines and mineral resources -- Idaho -- Power CountyDredging -- Idaho -- Power CountyAssaying -- Idaho -- Power CountyGold -- Idaho -- Power CountyText