The Allegheny National Forest is a National Forest located in northwestern Pennsylvania. The forest covers 512,998 acres (801.6 sq mi; 2,076.0 km sq) of land. Within the forest is the Kinzua Dam, which created the Allegheny Reservoir. The administrative headquarters for the Allegheny National Forest is located in Warren, Pennsylvania. The Allegheny National Forest has two ranger stations, one in Marienville, located in Forest County, and the other in Bradford, located in McKean County.