and US 87 ( Yellowstone Highway ) from 1936 to until Interstate 25 was completed ( between 1956 and the 1980s ) and therefore routed along it .
Wyoming Highway 319 is the original alignment of Old US 185 between 1926 and 1936 .
US 87 ( Yellowstone Highway ) from 1936 to until Interstate 25 was completed ( between 1956 and the 1980s ) and therefore routed along it .
Wyoming Highway 319 is the original alignment of Old US 185 between 1926 and 1936 .