High Quality Content by WIKIPEDIA articles! State Highway 63 (abbreviated SH-63) is a 96.7 mile (155.6 km)state highway in southeastern Oklahoma. It runs from U.S. Highway 69 in Kiowa to the Arkansas state line. SH-1 forms a concurrency with SH-63 for 37.8 miles (60.8 km), nearly forty percent of the highway`s length. SH-63 has one spur route, designated as SH-63A.