Celebrating 100 Years of the Appalachian Trail

New Overview and Planning Map

New Editions of Appalachian Trail Topographic Map Guides

In 2025, the Appalachian Trail (commonly referred to as the A.T.) marked its Centennial, celebrating 100 years of conservation, community, and history.

First envisioned by Benton MacKaye in 1921 and completed in 1937, this iconic hiking trail spans over 2,190 miles from Springer Mountain in Georgia to Mount Katahdin in Maine. The trail embodies a profound appreciation for wilderness and a connection to nature.

IMIA Sponsor Corner is one of the benefits in certain levels of our annual sponsor program.

For more information about the sponsor program, click here.

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