Civilian Conservation Corps (CCC) Camp ANF-1 (Pebble Dell) is located on private land within the Allegheny National Forest (ANF) near Duhring, Pennsylvania. Currently known as the Summers Allegheny Trail Rides Camp, it is one of a handful of extant CCC camps nationally. The enrollees in this camp planted the first stands of trees replenishing the ravaged Allegheny National Forest, an action placing these men at the forefront of the conservation movement spearheaded by President Franklin D. Roosevelt. The men from ANF-1 also built roads, worked on watershed stream improvements, and helped construct local state parks.
Graduate students prepared a site documentation and inventory, a measured drawing survey, building reports, photographic documentation, site history, and a Phased Master Plan for development. The team also submitted a nomination and Determination of Eligibility (DOE) for National Landmark status to the Pennsylvania Historical and Museum Commission. The Commission approved the DOE in January 2009.