•3,523 ft of elevation gain over 14.7 miles means sustained climbing. Gradual but persistent climb — pace yourself and bring extra water.
•Rated "Easy" difficulty but at 14.7 miles, distance alone makes this a moderate time commitment. Bring snacks and plan for 3+ hours.
•Dogs are allowed on this trail (typically on-leash). Bring water for your pet and pack out waste — many trailheads now have mutt mitt stations.
•Located in Illinois State Park — a national park entry fee or pass (e.g., America the Beautiful pass at $80/year) may be required. Check NPS.gov for current conditions and closures.
•Best visited during April-October. Trail conditions outside this window may include snow, mud, or closures — check local ranger station updates.
14.7 mi
Distance
3,523 ft
Elevation Gain
★★★★☆
4.4/5 (1,614 reviews)
Yes
Dogs Allowed
Trail Details
A easy 14.7-mile out & back trail in Illinois State Park, Illinois.
How long is the Nature Loop (Illinois State Park)?
The Nature Loop (Illinois State Park) is 14.7 miles (Out & Back). It has an elevation gain of 3,523 feet. Most hikers complete this trail in 5-8 hours depending on fitness level and pace.
How difficult is the Nature Loop (Illinois State Park)?
The Nature Loop (Illinois State Park) is rated Easy. It is suitable for hikers of all fitness levels including families with children. The surface is dirt/rock.
Are dogs allowed on the Nature Loop (Illinois State Park)?
Yes, dogs are allowed on the Nature Loop (Illinois State Park). Keep your dog on a leash at all times, bring plenty of water for them, and pack out all waste. Check current trail conditions as regulations can change seasonally.
When is the best time to hike the Nature Loop (Illinois State Park)?
The best season to hike the Nature Loop (Illinois State Park) is April-October. Fall colors make this time particularly scenic. Check current trail conditions before your visit, as weather and seasonal closures can affect accessibility. Starting early in the morning helps avoid crowds and afternoon weather.
How popular is the Nature Loop (Illinois State Park)?
The Nature Loop (Illinois State Park) has a rating of 4.4/5 based on 1,614 reviews. It is well-regarded by hikers and consistently receives positive reviews. Located in Illinois State Park, it offers beautiful scenery and a rewarding outdoor experience.