State Highway 7 (abbreviated SH-7) is a 150.5-mile (242.2 km) highway in southern Oklahoma. This lengthy highway connects many towns in Oklahoma's "Little...

State Highway 3, also abbreviated as SH-3 or OK-3, is a highway maintained by the U.S. state of Oklahoma. Traveling diagonally through Oklahoma, from...

State Highway 66 (abbreviated SH-66) is a 192.7-mile (310.1 km) state highway in the U.S. state of Oklahoma, beginning at U.S. Highway 81 in El Reno and...

State Highway 51, abbreviated to SH-51 or OK-51, is a major state highway in Oklahoma, United States. It runs for 332.8 miles (535.6 km) east–west across...

State Highway 9, abbreviated as SH-9, OK-9, or simply Highway 9, is a major east–west highway in the U.S. state of Oklahoma. Spanning across the central...

State Highway 10 (abbreviated SH-10) is a state highway in northeastern Oklahoma. It makes a 233.1 miles (375.1 km) crescent through the northeast corner...

State Highway 37 (abbreviated SH-37) is a designation for two separate highways in the state of Oklahoma. The northern section runs between Hinton and...

State Highway 99 (SH-99) is a north–south state highway through central Oklahoma. It runs from the Texas state line at Lake Texoma to the Kansas state...

the U.S. state of Oklahoma. These highways were once a single major north–south route, connecting Oklahoma City to more rural parts of the state. The original...

S. Highways, and state highways. Interstate and U.S. Highways are continuous with surrounding states, while state highways are not (though Oklahoma and...