(Visitor’s Center, 15', 2007, IA-07-08) S. of Cedar Falls, Cedar Falls Township, Black Hawk County, IA. Hudson Rd. N. 1.0 miles from jct wth US20 S. of Cedar Falls to the bldg on the E. side of the road at 6510. (N42 28.756 W92 27.867) Photo by Jack & June Schmidt 6-30-12.