Length: 615 mi. Oklahoma Route 3 (OK-3) is a highway that traverses Oklahoma diagonally. It begins north of Boise City, and ends at the Arkansas state line (AR 32). The road goes through the counties of Cimarron, Texas, Beaver, Harper, Ellis, Woodward, Dewey, Blaine, Kingfisher Canadian, Oklahoma, and Pottawatomie. It was inaugurated in 1939.
POPULAR SIGNS:More signs
NEW SIGNS:More signs