The Appalachian Trail
Image from page 6 of "The Appalachian Trail", published by the U.S. Forest Service in 1964.
United States Forest Service
SubjectThe Appalachian Trail
RightsNo known restrictions
United States Forest Service, “The Appalachian Trail,” Appalachian Trail Histories, accessed October 1, 2023, https://appalachiantrailhistory.org/items/show/57.