Welcome! To join a workday, please RSVP or contact the stewards ahead of time (see Contacts at the bottom of each event).

NOTE: All youth (under 18 years of age) must be accompanied by a parent or legal guardian, or be part of a chaperoned group (e.g. scouts, schools, etc). See our FAQs page for details.

Watersmeet Prairie Grove

Watersmeet Prairie Grove 1899 winnetka road, northfield

Named for the joining of the Middle and East Forks of the North Branch of the Chicago River, Watersmeet Prairie Grove has a wide variety of communities, from a limey, wet woods...

RSVP Now Free 15 spots left

Linne Prairie

Linne Prairie 8874 Lehigh Ave, Morton Grove

Linne Prairie is a different site from the rest of the North Branch preserves. The area was used as temporary storage for a huge pile of limestone excavated for the deep tunnel...

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Harms Woods

Glenview Woods parking lot, west side of Harms Road, just south of Glenview Rd. 721 Harms Road, Glenview

This fine oak woodland lies on the west side of the North Branch of the Chicago River in the village of Glenview. Several different species of oak are represented here; red oaks...

RSVP Now Free 13 spots left