Slough-Slump Gulch Loop is a 12.5 mile lightly trafficked loop trail located near Salmon, Idaho. The trail is rated as moderate and primarily used for mountain biking. DISTANCE 12.5 miles ELEVATION GAIN 1748 feet ROUTE TYPE Loop mountain biking Expand Map VIEW FULL MAP Sign up now to see this map! Reviews (0)Photos (0)Recordings (1)No one has reviewed this trail yet. Be the first!