At 8,065 acres (32.63 km²), it is one of largest city-run parks in the United States, and offers a wide range of activities for residents and tourists alike.
The Lee's Mill Earthworks were preserved; though overgrown with woods, they are accessible from the White Oak Nature Trail on the reservoir's camping side.
It has an archery range; a disc golf course; and an aeromodel flying field for remote-control aircraft, with a 400 ft (120 m) runway.
It also hosts the Albert E. Dorner cross country invitational annually for several public and private high schools.
There are exhibits on the park's animal and plant life, and on the land's history, including displays of Civil War artifacts.