A coalition of 300 environmental groups recently named the Allegheny National Forest in northwestern Pennsylvania the most endangered national forest in the United States. The site is home to the country’s highest percentage of forest land open to commercial oil and gas drilling. But while the government owns more than 510,000 acres of the forest, the mineral rights to the land are private. As Ann Murray reports, this makes for a complex debate about oil and gas management in the Allegheny.