Devils Backbone
Ridge in Vermillion County, Indiana · on the USGS Humrick quadrangle
39.96720, -87.51149
Maps that show Devils Backbone
Get them in the map app
Humrick, IL-IN
Detailed map of terrain, trails and roads
USGS topo, 2024
Ridge Farm, IL
Old map for history, not navigation
USGS historical 15-minute topo (1947)
Network to Freedom Brochure Map - National Underground Railroad Network to Freedom Program
National Park Service Maps · National Underground Railroad Network to Freedom Program
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-27 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-10 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-12 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).