MASS 
 School Tour - Fri 9/28/2007 6p
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Chicago Critical Mass
School Tour
Fri Sep 28th 2007 6p

Critical Mass is a very large group bike event, gathering in Chicago the last Friday of every month for 20+ years. Leaves Daley Plaza downtown (50 W Washington St) around 6pm.
Contact: Unknown.
Facebook.com/ChicagoCriticalMass
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