The Subway Top-Down Approach is a 4.44-mile out-and-back foot trail in Zion National Park, Utah. It climbs 1,401 ft to a high point of 6,931 ft. Difficulty: strenuous, from the NPS hiking-rating formula.

Open The Subway Top-Down Approach on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Zion. Zion has permits or reservations for some areas: see the Zion page for what's needed.