Clarence Cannon Dam And Mark Twain Lake Mo — Mark Twain State Park

Mark Twain State Park is a US Army Corps of Engineers recreation area within Clarence Cannon Dam And Mark Twain Lake Mo. The Corps manages 400+ lake and river projects nationwide, making it one of the largest federal providers of outdoor recreation. It sits on USACE-administered land but day-to-day management is by State Agency (Other Than Military) under a lease with the Corps. Camping rules, fees, and seasonal closures vary by site — verify current operations with the managing district before any visit.