(Bobby Hopper, 1595, 1998) SW of Winslow, Winslow Township, Washington County, AR. AR74 (Winslow Blvd, becomes Devils Den Rd.) W. 6.1 miles from jct with US71 in Winslow, S. on I540 3.6 miles to the N. end of the tunnel. (N35 45.956 W94 11.423) Photos by Jack & June Schmidt 9-22-21.