(Boundary) at The Boundary on 66 W. of Luther, Oklahoma County, OK. OK66 (Danforth Rd.) W. 3.0 miles from jct with Luther Rd. N. of Luther to the mural on the N. side of the road on the W. side of the bldg. (N35 39.967 W97 14.821) Photo by Jack & June Schmidt 6-5-09.