Sulphide Glacier Route is a 4.82-mile out-and-back foot trail in North Cascades National Park, Washington. It climbs 3,012 ft to a high point of 9,093 ft. Difficulty: strenuous, from the NPS hiking-rating formula.
Open Sulphide Glacier Route on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for North Cascades. North Cascades has permits or reservations for some areas: see the North Cascades page for what's needed.