The Allegheny National Forest is a National Forest in northwestern Pennsylvania. The forest covers 513,175 acres of land. Within the forest is Kinzua Dam, which impounds the Allegheny River to form Allegheny Reservoir. The administrative headquarters for the Allegheny National Forest is in Warren. The Allegheny National Forest has two ranger stations, one in Marienville, Forest County, and the other in Bradford, McKean County. The Allegheny National Forest lies in the heart of Pennsylvania’s oil and gas region. It is only 40 miles (64 km) from the site of the first commercial oil well in the United States at Titusville, Pennsylvania. In 1981, about 17 percent of the state’s crude oil production came from mineral rights owned by private individuals within the Forest boundary. The majestic Allegheny National Forest (ANF), offers four seasons of outdoor recreation including camping, fishing, boating, hunting, hiking, cycling, birding, snowmobiling and ATV Trails. Located within northwestern Pennsylvania, it is a convenient drive for more than one-third of the nation’s population.