Arkansas Highway 166

Arkansas Highway 166 is a designation for two List of [Arkansas state highways|state highway]s in Randolph [County, Arkansas]. The southern segment of runs from Old [Davidsonville State Park] to Pocahontas. A northern segment of runs north from U.S. [Route 62 in Arkansas|US 62]/U.S. [Route 67 in Arkansas|US 67] to the Missouri state line.

Route description

Davidsonville Historic State Park to Pocahontas

AR 166 begins at Davidsonville [Historic State Park] in southwest Randolph County. The route runs north to meet US Route 62 in south Pocahontas. The route is entirely two-lane, undivided.

Pocahontas to Missouri

AR 166 begins at US 62/U.S. Route [67 in Arkansas|US 67] in east Pocahontas. The route runs north to meet AR 115 at Stokes and AR 328 in Maynard. AR 166 then trails north through Supply and Minorea to the Missouri state line, where it terminates at Missouri [supplemental route|Missouri supplemental routes A/Y].

Major intersections

Mile markers reset at concurrencies.