There is over 300 acres of wetland in this complex. Pingree Grove is a magnificent marsh and woodland as part of the extensive headwaters of Tyler Creek. It contains rich fen edges, prairie and wooded shorelines, Bur Oak-covered islands and peninsulas, and isolated wetland pockets each with a different high quality plant community. It is home to Great Blue Herons and nesting Sandhill Cranes, and a host of fine wetland birds, also a popular visiting spot for the endangered yellow-headed Blackbird and the American Bittern.
This preserve includes a horseback riding area. Most horse trails are natural surface, mowed grass paths. Limestone screenings trails and asphalt bike trails are available in some of the preserves. These are multi-use trails shared with runners, bicyclists, dog walkers etc. Horse riders are required to stay on designated, forest preserve-maintained trails. Trail riding is not allowed in restricted natural areas, Illinois Nature Preserves, picnic areas or in farmed areas. To prevent trail damage during wet weather, trails may be temporarily closed. Individual forest preserves will post a sign at the entrance when horse trails are closed. Trails are currently OPEN for equestrian use at this preserve.