The Lake Eufaula Association is a non-profit organization that promotes all aspects of Lake Eufaula for year-round recreational activities including boating, water sports, swimming, fishing and hunting. Lake Eufaula is Oklahoma's largest lake with over 800 miles of shoreline and 105,000 surface acres of water. It is the 15th largest man-made lake in the United States and one of the top ten crappie fishing lakes in the nation.