The Birch Run lean-tos were built in 1934 by workers from the Civilian Conservation Corps (CCC) in the Michaux State Forest in Pennsylvania. Like other shelters in this stretch of the Trail, these lean-tos were constructed in pairs of smaller shelters, rather than as one larger shelter. The original structures were torn down in the 1980s, and replaced with a single, larger shelter. These shelters were and the new shelter is maintained by the Potomac Appalachian Trail Club (PATC).