(Centennial, 54', 2007, 36-05-a) across pond inlet in Ackley Park in Elk City, Beckham County, OK. Pioneer Rd. N. 0.4 miles from jct with Bus.I40 (3rd St.), W. into park 0.15 miles, S. on park road 0.1 miles to the bridge on the E. side of the road. (6-15-09, N35 24.937 W99 26.216) Photos by Jack Schmidt.