The Triple Crown is three different jobs. Pick the one that matches your season, your water comfort, and how much navigation you want to learn on the clock.
- Appalachian Trail. Highest community density, most shelters, constant elevation change. Official length in 2026: 2,197.9 miles. ATC 2025 NOBO reported completion: 25%. A hard first trail, and the most supported.
- Pacific Crest Trail. More climate zones. Longer water carries in the desert. A snow window in the High Sierra. About 2,650 miles. A long-distance permit from the PCTA sets the start. In 2025, only half of hikers got the exact date they wanted.
- Continental Divide Trail. Most remote. Highest navigation demand. Alternates are part of the trail, not a footnote. The 2025 CDT survey was 94.9% people who had already done a long trail. It is a poor first thru.
Shorter first tests still count: a shorter trail, or a few weeks of the AT, PCT, or CDT. Section first is often the smarter call.