Crow Agency, town (1990 pop. 1,446), Big Horn co., SE Mont., on Little Bighorn R., 11 mi/18 km SSE of Hardin; 45°36'N 107°28'W. In irrigated agr. region; grain, sugar beets; cattle. Trading center and hq. of Crow Indian Reservation located in NE part of reservation. Little Bighorn (formerly Custer) Battlefield Natl. Monument to SE; Big Horn Canyon Natl. Recreation Area to SW.