white oak Almon Underwood Prairie Forest Preserve

Kaneville Township
Blackberry Township

2S480 S. Lorang Rd.
Elburn, IL 60119

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The structure of Underwood Prairie is a series of small, undulating, gravel knolls that are part of the Kaneville Esker, Illinois' longest esker, deposited here between 10,000 and 20,000 years ago.

It is believed that eskers were formed by glacial debris washing across massive ice sheets into sinuous cracks or chasms in the ice, which later melted, leaving this wandering, linear imprint on the landscape.

Underwood Prairie is an Illinois Nature Preserve, covered with high quality, aboriginal, dry hill prairie plants. There are more than 50 prairie forbs and shrubs creating an exquisite display of color throughout the blooming season.

The row-cropped fields surrounding these knolls are being restored with the native seed bank here, and the degraded wetlands are also on their way to recovery.