Pere Marquette State Park in Illinois, provides a variety of hiking opportunities. The park has 10 trails that total approximately 12 miles. The trail ratings range from easy to difficult and travel through a variety of habitats. There are 9 scenic overlooks that provide panorama’s of the countryside. The trails are color-coded and marked with paint on the trees and sign posts.
Alert! Poison Ivy is common to Pere Marquette State Park, likes sunlight and is often found at the edge of the hiking trails. Poison Ivy can be a vine or a low shrub, has droopy, compound leaves which consist of triple leaflets that can be smooth or irregularly toothed. The leaves are reddish in the spring, turn green during the summer, and some Poison Ivy plants turn various shades of gold or red in the fall. All parts of Poison Ivy, even its pollen, are potentially irritating and remain toxic in all seasons. Poison Ivy resembles Virginia Creeper, another common plant in the Park except that Virginia Creeper has five leaflets. (source)