The Allegheny National Forest is located in the north western part of Pennsylvania.
Where is this Forest?



Welcome to the Allegheny National Forest

The Allegheny National Forest (ANF) is Pennsylvania’s only National Forest. The forest is approximately 517,000 acres and includes land in Elk, Forest, McKean and Warren counties in the northwestern corner of the state. About 463,000 acres are forested; 42,000 acres are non-forest; and 11,000 acres are covered by water (primarily the Allegheny Reservoir). The ANF is administratively divided into two Ranger Districts:  Bradford and Marienville.

The Forest Service brought new concepts in forest management to the Allegheny Plateau -- multiple benefits and sustainability. The Organic Act of 1897 introduced the National Forest mission: to improve the forest, provide favorable conditions for water flows, and furnish a continuous supply of wood to meet people's needs. On these lands, seedlings for tomorrow's forest are the focus of forest management activities. Watersheds are managed to ensure clear water for fisheries like trout and clean drinking water for all.


Recent News


Marienville Ranger District Develops Nature Path

What began as a discussion among frontliners about a desire to have an environmental education/interpretive program near the ANF’s Marienville Ranger District office, recently turned into a reality.

Hemlock Woolly Adelgid Suppression Project

The hemlock woolly adelgid (HWA) is a tiny nonnative (introduced to United States from Asia) invasive insect that is attacking and killing hemlock trees across Pennsylvania and many eastern states.

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Congressman Thompson treats first eastern hemlock to combat HWA

Congressman Glenn Thompson joined the Allegheny NF, Northern Research Station; the Nature Conservancy & Wildcat Park board omembers to treat an eastern hemlock tree.

ANF Employees Tackle Garlic Mustard

On a recent foggy morning, a crew of Allegheny National Forest employees met at Buckaloons Recreation Area to battle with a notorious adversary – garlic mustard.


Allegheny National Forest Launches Road Study

The Allegheny National Forest is launching a road analysis as part of completing Subpart A of the Travel Management Rule.


ANF employees plant trees at Flight 93 National Memorial

Thirteen ANF employees participated in the Plant a Tree at Flight 93 project at the Flight 93 National Memorial in Shanksville, PA.  

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