Large-Scale Unpaved Trail Rehabilitation and Ecological Restoration in the Palos Preserves
The Swallow Cliff and Palos Trail System Infrastructure Improvements project focuses on the reconstruction and ecological restoration of unpaved trail systems across the Palos and Sag Valley regions. The Palos Preserves are a major regional outdoor recreational hub and serve as one of the top hiking and mountain-biking destinations in northern Illinois. The project will focus on ecologically restoring approximately 1,100 acres, with the potential to broaden the restoration efforts to include up to 2,000 acres. The objectives include enhancing the ecological integrity of the region, augmenting the sustainability of the rehabilitated trails, opening sight lines and improving the quality of the nature experience for trail users.
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Background
The Forest Preserves is undertaking extensive upgrades to enhance outdoor recreational experiences by addressing erosion, improving accessibility and implementing sustainable drainage structures. Focused on key destinations like Swallow Cliff Woods and Red Gate Woods, the project seeks to improve the experience of visiting recreational amenities, including the Little Red Schoolhouse Nature Center, Camp Bullfrog Lake, the Swallow Cliff Fitness Stairs and nearby lakes. In line with the Forest Preserves’ Next Century Conservation Plan and Natural and Cultural Resources Master Plan, the project emphasizes Palos as a top-priority landscape for conservation and ecological restoration.
Red Gate Woods Restoration
Beginning in the winter of 2023, the Forest Preserves will undertake large-scale restoration efforts based from Red Gate Woods. This work aims to restore a diverse ground layer of plants, enhance native wildlife habitat, reduce erosion, allow the soil to absorb more stormwater, and significantly enhance trail users’ views and experience.
This work will span approximately 1,100 acres in the northwest section of the Palos Preserves—the area between the Des Plaines River, the Cal-Sag Channel, Route 83 and 104th Ave. This area’s rolling topography and diverse ecosystems include Red Gate Woods, Pulaski Woods, Wolf Road Woods and Maple Lake, as well as Little Red Schoolhouse Nature Center. Upland areas support oak woodland and savanna, while wetlands occupy depressions left by past glaciers. Ravines drain towards the Des Plaines River to the north and Cal-Sag Channel to the south, supporting mesic woodland and forests. Several wetlands, including Maple Lake, Bullfrog Lake and Joe’s Pond, were created or deepened for recreational purposes.
Historic fire suppression and past human disturbances have led to ecological degradation of these preserves. Invasives, especially non-native honeysuckle (Lonicera spp.), have become abundant and are a main target for brush removal for the project, allowing for herbaceaous vegetation like grasses, sedges and wildflowers to return. The Forest Preserves’ Resource Management Department is managing the ecological restoration component of the project. Under their direction, contractors will remove invasive brush species.
During growing seasons, Forest Preserves staff and contractors will conduct follow-up vegetative and woody invasive species control. The restoration work is scheduled from 2023 through 2028.
Closures due to this project will be posted to the Forest Preserves’ Closures & Alerts page and interactive web map.
Trail Reconstruction
Rivaling national parks in size, the Palos Preserves are home to a diverse array of attractions, including 78 miles of trails for hiking, cycling, riding and cross-country skiing. Recognized as a top-10 hiking destination in Illinois, this unique collection of preserves features nature centers, three popular fishing lakes, a boathouse at Maple Lake, the Swallow Cliff Stairs and camping options at Camp Bullfrog Lake.
However, these trail networks have historically faced several challenges, particularly with recurring erosion and navigational complexities. To address these issues, the Forest Preserves’ Planning & Development Department aims to add trailhead improvements, introduce new accessible paths, and add more wayfaring and informational signs. This work will be in conjunction with and enhanced by ecological restoration that address erosion, open sight lines, and improve the quality of the nature experience for trail users. By further unifying and enriching the trail system, the project seeks to create a seamless and enjoyable outdoor experience for all, making the Palos Preserves an even more inviting destination for nature enthusiasts and recreational seekers alike.
Funding
Project funding is provided in part by the Department of Commerce and Economic Opportunity and made possible through Build Illinois bond funds. This project exemplifies the commitment and collaboration of the State of Illinois on the preservation and enhancement of our natural resources and the promotion of healthy outdoor recreation opportunities.