[3] All routes are maintained by the Arkansas State Highway and Transportation Department (AHTD).

[1] The highway begins at U.S. Route 412 (US 412) east of Walnut Ridge near the Cache River and the Green County line.

The minor connector route runs due north along a section line to Highway 304, where it terminates near the unincorporated community of Sharum.

Odd-numbered Arkansas state highways are traditionally north–south routes, and as a result, are usually signed north–south even if the actual roadway alignment is east–west.

[5] A section near College City between US 67 and the Walnut Ridge Industrial Park was added as a state highway on April 9, 1980.

[6] The highway ran from US 67 near College City to the Walnut Ridge Industrial Park.