This is Capt. Breyfogle's place, http://www.riverrefuge.com/, about 25 miles east of Kansas City, just east of a little town called Missouri City. I've never understood the Alligator Cove name, but suspect there's a tall tale involved. The small building is a cabin that was elevated on blocks before being floated over on it's side.
Photos. Vicki Richmond. Missouri River Relief.