What We Do

Deer Grove East

Deer Grove East


In 2008 Openlands started working closely with ecologists from the Forest Preserve District of Cook County (the property owner), the U.S. Army Corps of Engineers, and other partner agencies to carefully assess the site's unique ecosystem needs, conducting hydrological monitoring, wetland studies, and plant inventories. Eventually, we developed a master restoration plan for the preserve, which was independently reviewed by the U.S. Fish & Wildlife Service, the U.S. Environmental Protection Agency, and the Illinois Environmental Protection Agency.

Invasive trees and shrubs that crowded ancient woodland trees and prevented sunlight from reaching ground-level plants were removed and colorful and varied native grasses and wildflowers were reintroduced. Openlands is also conducting ongoing controlled burns, an important natural catalyst in the development of healthy ecosystems. Jens Jensen Preserve is heavily used and is truly a place where plants, wildlife, and people can thrive.

Download a brochure (pdf) about the restoration project.

For more information, please contact landpreservation@openlands.org.

Location: Cook County, Illinois
Funding Source: O'Hare Modernization Mitigation Account (OMMA)
Owner & land manager: Forest Preserve District of Cook County
Size of project site: 180 acres
Partners:  Audubon-Chicago Region, Chicago Department of Aviation, Chicago District of the U.S. Army Corps of Engineers. Friends of Deer Grove East

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