Spruce Knob-Seneca Rocks National Recreation Area is a U.S. National Recreation Area (NRA) located within the Monongahela National Forest of eastern West Virginia, USA.The National Recreation Area protects three prominent West Virginia landmarks: Spruce Knob, the highest point in West Virginia (and the highest of the Allegheny Mountains) with a summit elevation of 4,863 feet (1482 m). Seneca Rocks, a 900 foot (270 m) high quartzite crag popular with rock climbers. Smoke Hole Canyon, a canyon along the South Branch Potomac River. Spruce Knob-Seneca Rocks NRA was established by an act of the U.S. Congress on September 28, 1965 as the first National Recreation Area in a United States National Forest. It is therefore administered by the US Forest Service rather than the National Park Service, as are most other NRAs.