Mark Twain State Park is a public recreation area encompassing 2775 acre on Mark Twain Lake in Monroe County, Missouri. The state park offers water recreation, hiking trails, and campgrounds. It is adjacent to the Mark Twain Birthplace State Historic Site. The Mark Twain State Park Picnic Shelter at Buzzard's Roost is a historic picnic shelter located at Mark Twain State Park. The shelter was built about 1941 by an all African-American Civilian Conservation Corps company. The shelter is constructed of stone in a rustic style. It was listed on the National Register of Historic Places in 1985.