Montgomery County · IN
PH4 (Devil's Backbone) is a 0.2-mile trail, in Montgomery County, IN. It climbs 81 ft and descends 93 ft, between 583 ft and a high point of 639 ft. Mapped for hiking, trail running.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Updated 2026-07-26. Open the interactive map for routing, weather, and offline use.