(Riverside, 40', 2006, 16-08-a) across Walnut River in Riverview Park in El Dorado, Butler County, KS. US54 (Central Av.) E. 0.7 miles from jct with US77 (Main St.), N. (left) on River Rd. 150’, NW (left) into parking lot & the bridge. (N37 49.065 W96 50.322) Photos by Jack Schmidt 6-27-09.