The Sauganash Historic District is a historic district which includes the Sauganash Park development, in the Forest Glen, Chicago neighborhood of North Side, Chicago, Illinois.
It is roughly bounded by Lemont and Keating Avenues, the Chicago and Northwestern Railway tracks, and the alley to the east of Kilbourn Avenue. The Skokie Valley Trail southern terminus is in this area.
The NRHP historic district includes 468 contributing structures and 141 non-contributing ones.
The Old Treaty Elm, said to be the site where the Indian Treaty of 1835 was signed, stood near the southernmost point of the District until 1933. A commemorative plaque now marks the site.
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The district was listed on the U.S. National Register of Historic Places on June 7, 2010. The listing was announced as the featured listing in the National Park Service's weekly list of June 18, 2010.