At the University of Chicago, scientists produced the first self-sustaining nuclear chain reaction (nuclear fission) on December 2, 1942. This first nuclear reactor was moved and rebuilt on Cook County Forest Preserve property in Red Gate Woods. As part of the Manhattan Project, a research facility and an additional reactor was built here.

Join the League of Women Voters of Cook County for a two-part program! Dave Dolak, Professor at Columbia College Chicago, will present a lecture on the atomic legacy of Red Gate Woods from 10 am to noon in Sagawau Environmental Nature Center Classroom. 

Following the lecture, participants can join in an optional hike at Red Gate Woods. The hike is about 3 miles to Site A, where the nuclear reactors were buried. Trail is grass, dirt, some tree roots, and asphalt. The trail is not for everyone, as it is moderate with some elevation gain— walking sticks/hiking poles would be useful. 

Program limited to 30 participants. No food or drink permitted in building.

To register to attend, email info@lwvcookcounty.org. Include your name, email, phone number, and, if you are a League member, you local League.