American Perimeter Trail - Southwest Primary

The American Perimeter Trail - Southwest Primary is a 1460.4 km trail that starts in Poston, Riverside County, California. Based on our data, the trail is graded as Medium. For information on how we grade trails, please read measuring the difficulty of a hiking trail on hiiker. Also, check our latest community posts for trail updates.

This trail can be completed in approx 74 days. Caution is advised on trail times as this depends on multiple variables. For more info read about how we calculate hike time.