Miss Riv Btwn Mo Rvr, Mpls Il Mn Wi Ia — John Hay

John Hay is a US Army Corps of Engineers recreation area within Miss Riv Btwn Mo Rvr, Mpls Il Mn Wi Ia. The Corps manages 400+ lake and river projects nationwide, making it one of the largest federal providers of outdoor recreation. It is managed directly by the US Army Corps of Engineers as part of the agency's Civil Works recreation program. Camping rules, fees, and seasonal closures vary by site — verify current operations with the managing district before any visit.