The Subway in Zion National Park refers to a section of The Left Fork of the North Creek trail which reminds one of... a subway.
There are two sections of this trail that are referred to as The Subway; this is the lower of the two. Reaching this area requires navigating one of two trails that are quite involved and require a Wilderness Permit.
Click on our home page and gallery pages for more panoramas of this trail and other areas of Zion National Park. - Martin van Hemert