Keystone State Park is located in northeast Oklahoma, just west of Tulsa, on picturesque Keystone Lake. This state park offers many different activities and accommodation choices for guests. For an action-packed time, load up the family in your own boat, or rent one and cruise off onto the lake for water skiing or fishing. Two ATV/ORV areas are located close by below the dam. Boat ramps within the park provide easy access to the lake. Pier 51 Marina is conveniently located in Keystone State Park, offering boat and equipment rentals as well as fuel, groceries and other boating necessities. They also have a full-service, floating restaurant at the marina when in season.