The Fall Colors Weekend celebration is Saturday and Sunday for the Starved Rock State Park complex, which also includes Matthiessen State Park.
The leaf colors are not at their peak, although site assistant superintendent Leo Trainer noted maples, such as some along Route 71, are especially vibrant.
He also noted more color should continue to appear as this week goes on, with up to 65 percent of trees changing from green to other hues. Trainer said it appears there should be plenty of fall color throughout the month, as it appears the color change, overall, is coming a little bit late.
Guided hikes leave from Starved Rock Visitors Center at 9 a.m. and 1 p.m.
For those who like even more guidance, there's a $27-per-adult trolley tour Saturdays and Mondays that includes a trolley ride, a hot lunch buffet in the lodge dining room and a guided walk to Council Overhang and Ottawa Canyon. For information, call (815) 220-7386.
The fall foliage map at Accuweather.com currently shows the fall colors peaking in much of Wisconsin from Madison to the Northwoods, with northern Minnesota and Michigan's Upper Peninsula "past peak" and color as "good" for most of Illinois and southern Appalachia. Colors are just appearing in southern Illinois and the Ozarks.