07/29/2015 10:15 AM EDT
One of the most popular backcountry hikes in Zion National Park, The Subway is not to be missed. This unique slot canyon was sculpted by the Left Fork of North Creek, and moving water chisels the rock floor, leaving behind shallow potholes. This amazing photo by Tiffany Nguyen captures the size and scale of The Subway. To explore The Subway, visitors must get permits, and it’s subjected to daily limits. For more great photos of Zion, check out http://on.doi.gov/1MpG6ap.
Photo courtesy of Tiffany Nguyen.