A wonderful “blue pool” gem at the end of the Left Fork of North Creek ( South approach ) hike.

The Subway is a colloquial name for a uniquely shaped slot canyon in Zion National Park. It is located between two peaks called the North and South Guardian Angels, deep within the Left Fork of North Creek. It is part of the larger Great West Canyon system, which includes both the Left and Right Forks of North Creek. The Subway is so named for its tube-like, undercut slot canyons. Hiking the South approach you end up at this “blue pool room”. To continue on requires rappelling with ropes and rock climbing.