Fallen tree after a storm on Mount Washington in New Hampshire

A photograph of John D. Imboden, Confederate Officer and founder of Damascus, VA

For many north-bound through hikers, Shaw’s Hiker-Friendly Lodging in Monson, ME represents their last bed and hot meal before heading into the "The 100-Mile Wilderness."

Rahawa Haile proudly stands atop Mt. Katahdin after completing her thru hike of the Appalachian Trail

Cornstalks sit in the yard of this Appalachian home- a reminder of the corn-based diet of the majority of mountain residents.

A Dartmouth Outing Club member forges the new Hurricane Trail on Mount Moosilauke (between Holts Ledge and Mount Cube), circa 1935.

Rebecca Wight (deceased) and Claudia Brenner, a couple followed and shot at eight times by Stephen Roy Carr on the Trail in May, 1988.

The last photo taken of Gerry Largay before she went missing in the early morning of July 22, 2013 taken by Dottie Rust.

Many animal species live on the Appalachian Trail. Many of them are being threatened or endangered due to many reasons, such as human impact, climate change, habitat destruction, and pollution.

Randall Lee Smith, a convicted murderer who was arrested for the second time in 2008 after a failed double-murder attempt on the Appalachian Trail.

Robert Mountford Jr. and Laura Susan Ramsay were both murdered on the Appalachian Trail in 1981 by Randall Lee Smith. This photograph shows the both of them at age 27.

A driver license photo of Randall Lee Smith taken in 1973. He went on to murder both Robert Mountford Jr. and Laura Susan Ramsay in May of 1981.