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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.

Harms Flatwoods

Harms Woods South Morton Grove

In the village of Skokie, east of the Chicago River’s North Branch, Harms Flatwoods is dominated by huge old bur and swamp white oaks, with an understory of black ash, winterberry, hazelnut...

RSVP Now Free 15 spots left

Somme Prairie Nature Preserve

Somme Prairie Nature Preserve 800 Western Ave, Northbrook

Located in the village of Northbrook, in northern Cook County, these forest preserves span the original continuum of prairie to the west and north and savanna and woodland to the east and...

RSVP Now Free 15 spots left

Spicebush Woods

Spicebush Woods 6221 N Caldwell Avenue, Chicago

Restoration work is just beginning on this beautifully wooded site of towering oaks and hickories with an understory of blue beech and spicebush. We'll be clearing buckthorn and pole trees to let...

RSVP Now Free 15 spots left

Oxbow Prairie

Oxbow Prairie 6800 N Caldwell Ave, Chicago

Oxbow Prairie, formed by an old loop in the river’s course, lies northwest of Bunker Hill Savanna. This old oxbow in the Chicago River’s North Branch is a combination of low, wet...

RSVP Now Free 15 spots left