Oklahoma. Post Oak Park Host - Copan Lake, US Army Corps of Engineers. Located in the small town of Copan, Oklahoma, the park host will be responsible for a quiet little campground containing 19 campsites. Duties will include posting reservations, cleaning campsites, assisting campers, opening (6 am) and closing (10 pm) entrance gate daily, and coordinating walk-ins with off-site gate attendant. Volunteers are provided a waterfront campsite with full hookup (water, sewer, 50-amp electric) and a small shed in exchange for 20-25 volunteer hours per week. For more information call the Copan Lake Office at: 918-532-4334 or email Tabitha Nixon at: [email protected]