Collection contains materials mainly relating to Throssel's photographic work of the Crow and Northern Cheyenne Indians from 1902-1933. Collection includes 2,481 photographs, glass plate negatives and lantern slides of daily life, ceremonies, portraits and village scenes of the Crow and Northern Cheyenne; what is now the Little Bighorn National Monument; daily life of Billings; Throssel and his family; ranching; and scenery of southern Montana and northern Wyoming (1902-ca. 1920s).

Collection also includes 12 pieces of correspondence with Throssel and of his family (1915-1916, 1928, 1954-1960); manuscripts and speeches by Throssel on Indian culture; newspaper clippings, pamphlets and other printed materials on Throssel and his photography (1900-1963); and 25 paintings by Throssel of outdoor scenes and Crow Indians (1904-1933). For more information, see the AHC online catalog or contact AHC Reference Services.