[1] A third segment of 0.61 miles (0.98 km) runs from U.S. Route 62 (US 62) in Gateway north to the Missouri state line.

The route begins at Highway 14 east of Amagon and runs north, passing near the Cache River National Wildlife Refuge.

Running a distance of approximately 18 miles (29 km), its southern terminus was at the intersection of US 71 (8th & Walnut Streets) in Rogers then passed through the communities of Avoca and Garfield before it ended at the Missouri state line just north of Gateway.

The brief connector segment was renumbered in January 1976 to match the Missouri designation, thus providing continuity for travelers seeking Eureka Springs.

[8] Media related to Arkansas Highway 37 at Wikimedia Commons