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Location & Things to Do
Forty Acre Woods
Entrance
119th St, east of S La Grange Rd
Cook County, IL 60464
(near Palos Park)
Things to Do & Amenities
- Parking
- Portable Bathroom
- Hiking & Walking
- Bicycling
- Dogs
(on-leash only) - Cross-Country Skiing
- Equestrian Parking
Hours
Year-round: Sunrise to SunsetClosures & Alerts
- NO ISSUES 5/15/2025: Open during normal hours.
Trails
Sag Valley Trail System
The Sag Valley Trail Systems’ miles of looping and connecting unpaved trails take visitors to some of the most remote areas of Cook County.
Location: Homer Glen, Lemont & Palos Park
Surface
UnpavedEstimated Total Length
20.4 milesHours
Year-round: Sunrise to SunsetClosures & Alerts
- ALERT 05/08/2025 - 07/07/2025: Trail Closure: The Blue Unpaved Spur (East), located east of Palos Park Woods South, will be temporarily closed for bridge repair work. Construction vehicles will access the area via the Palos Park Woods South lot, taking the Orange Unpaved Spur (East) and Yellow Unpaved Loop. Vehicles will be present intermittently on the trail. Sag Valley Trail System - Orange Unpaved Spur (East), Blue Unpaved Spur (East), and Yellow Unpaved Loop near Palos Park Woods-South.
*Please be a courteous trail user: Follow posted signs and our trail rules and etiquette.