Puptown is a Dog Friendly Area (DFA) in Chicago's Margate Park where dogs can run and play off-leash. Built in 2000, Puptown features 16,230 square feet of fully-enclosed fun (view the site plan).
There are benches for dog owners and, in the summer months, a continuously running water fountain for dogs. Puptown is open everyday until 11 p.m. Read more at http://www.puptown.org/about.html