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Palos Night Sky Picnic

the night sky over Maple Lake with the Maple Lake Boathouse lit up in the background
Maple Lake at night. Photo by Tom Hahn.

Date & Time:

Fri, Sep 15 • 5 pm - 10 pm


Pioneer Woods
107th St, east of S Willow Springs Rd/Flavin Rd
Cook County, IL 60480 (view web map)
(near Willow Springs)


In 2021, DarkSky International designated the Palos Preserves in southwest Cook County as an Urban Night Sky Place—a location near large urban areas whose planning and design actively promote an authentic nighttime experience in the midst of significant artificial light. The site is the largest Urban Night Sky Place in the world.


  • Live entertainment
  • Informal exhibits and presentations
  • Astronomers with telescopes will give us the opportunity to see our night sky up close after dark


  • Bring your own picnic food, beverages, cocktails and chairs
  • Beverages in glass bottles not permitted
  • Weather dependent (rain/cloud date will be Saturday, September 16th, 5:00 to 10:00 pm)


This event is sponsored by the Forest Preserves of Cook County, DarkSky International, and Sag Moraine Native Plant Community.

Registration Required: Register at https://sagmoraine.org/Palos-Night-Sky-Picnic/.