Illinois trails · One Horse Gap
One Horse Gap
A 8.8-mile network in Illinois, with 309 ft of climbing. Reaches One Horse Gap. Managed by the U.S. Forest Service.
Elevation profile
The climbing is spread fairly evenly along the route. It gives back about 744 ft along the way, so it rolls rather than climbing steadily.
3-D terrain
USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
Reaches
- One Horse Gap (pass)
Heads up
Getting there
BENHAM HILL — parking nearby. 37.50958, -88.47381 · directions
Daylight at the trailhead
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 5:56 a.m., the sun rises at 6:23 a.m. and sets at 7:24 p.m., and the last usable light fades about 7:51 p.m. (CDT) — 13 h 02 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 8.8-mile route takes roughly 3 h 25 min, so leaving the trailhead at sunrise puts you back around 9:47 a.m. — 9 h 37 min before sunset.
Loop options
- ONE HORSE GAP + 175B + WEST CAMP — 5.5 mi loop, 815 ft gain
- ONE HORSE GAP + 176A + WEST CAMP — 6.3 mi loop, 829 ft gain
- ROCKY TOP + ONE HORSE GAP + LOWER GAP — 5.3 mi loop, 727 ft gain
Nearby trails
- One Horse Gap Lake — 1.7 mi
- River To River Trail — 2.5 mi
- New Gog - Karbers Ridge — 4.8 mi
- Lusk Creek — 5.7 mi