The Little Bighorn Battlefield National Monument (LIBI) GIS program was created from academic research and coursework in the Department of Economics and Geography, United States Air Force Academy (USAFA). The GIS data developed for LIBI was complied from hardcopy maps and blueprints provided by the LIBI staff and softcopy data available from the US Census Bureau. This dataset captures the Little Bighorn River at Custer Battlefield in 1891. This dataset was obtained from a 1891 USGS Custer Battlefield topographic map (1908 ed.). This dataset was provided to the staff of LIBI and the Intermountain Region GIS Program Office, National Park Service free of charge, for their appropriate use.