Waterfall Glen Main Trail – Cal-Sag Trail loop from Willow Springs

If you're looking for a substantial gravel biking adventure that mixes diverse natural beauty with a real workout, the Waterfall Glen Main Trail – Cal-Sag Trail loop from Willow Springs is definitely worth your time. This moderate route spans 43.0 miles (69.1 km) with 1191 feet (363 metres) of elevation gain, typically taking around 4 hours and 14 minutes to complete. It's a fantastic option for experienced gravel riders seeking a long, varied day out, especially those who appreciate a blend of forest preserves and waterway views.

What to expect on Waterfall Glen Main Trail – Cal-Sag Trail loop from Willow Springs

This loop offers a dynamic journey through varied landscapes. You'll start with the rolling hills and ecological diversity of Waterfall Glen Forest Preserve, where the crushed limestone trail winds through woodlands, prairies, and savannas. Keep an eye out for wildlife and enjoy serene spots like the Rocky Glen Waterfall and the panoramic Des Plaines River Scenic Overlook. Transitioning to the Cal-Sag Trail, you'll find a mix of paved and gravel sections, offering pleasant views along the Calumet-Sag Channel and through natural areas like the Sag Quarries Nature Preserve. While Waterfall Glen provides consistent, gradual inclines and declines for a good cardiovascular challenge, the Cal-Sag Trail is generally flatter, though some eastern sections can be hillier. This route is best for riders with good fitness who are comfortable with longer distances and varied terrain.

Planning your visit

The trail system is open year-round, providing accessibility in all seasons. While Waterfall Glen offers amenities like restrooms and water fountains, be aware that some sections of the Cal-Sag Trail, particularly a rough stretch of road riding in the middle, lack dedicated bicycling infrastructure and can be bumpy and industrial. After rain, some parts of Waterfall Glen may become muddy, so check conditions before you go. Parking access is generally good near Willow Springs, but arriving earlier in the day is always a good idea, especially on weekends, to secure a spot.

Trail details

• Distance: 43.0 miles (69.1 km)
• Elevation gain: 1191 feet (363 metres)
• Difficulty: moderate
• Estimated time: 4 hours and 14 minutes