The Monongahela National Forest is a national forest located in the Allegheny Mountains of eastern West Virginia, US. It protects over 921,000 acres of federally managed land within a 1,700,000 acres proclamation boundary that includes much of the Potomac Highlands Region and portions of 10 counties.
Location: West Virginia, United States
Established: April 28, 1920
Area: 921,150 acres (3,727.8 km²)
Named for: Monongahela River, in whose watershed much of the original forest was located