•6,540 ft of elevation gain over 13.5 miles means sustained climbing. Gradual but persistent climb — pace yourself and bring extra water.
•Dogs are not permitted on this trail. Check nearby trails if you need a dog-friendly alternative.
•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.
13.5 mi
Distance
6,540 ft
Elevation Gain
★★★★☆
3.6/5 (2,972 reviews)
No
Dogs Allowed
Trail Details
A moderate 13.5-mile out & back trail in Illinois State Park, Illinois.
The Illinois State Park Lake Loop is 13.5 miles (Out & Back). It has an elevation gain of 6,540 feet. Most hikers complete this trail in 5-8 hours depending on fitness level and pace.
How difficult is the Illinois State Park Lake Loop?
The Illinois State Park Lake Loop is rated Moderate. A reasonable fitness level is recommended. The trail includes some elevation changes and uneven terrain. The surface is gravel.
Are dogs allowed on the Illinois State Park Lake Loop?
No, dogs are not permitted on the Illinois State Park Lake Loop. This is a common restriction in national parks and certain protected areas to preserve wildlife habitat. Consider nearby dog-friendly trails in the area as alternatives.
When is the best time to hike the Illinois State Park Lake Loop?
The best season to hike the Illinois State Park Lake Loop 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 Illinois State Park Lake Loop?
The Illinois State Park Lake Loop has a rating of 3.6/5 based on 2,972 reviews. It offers a solid hiking experience, though it may be less well-known than some popular alternatives. Located in Illinois State Park, it offers beautiful scenery and a rewarding outdoor experience.