Field trip co-leader leader Chris Holden recaps the July 19 COS trip to Humboldt Park..
Read MoreField trip leader Chris Holden recaps the May 23 COS after work trip to Humboldt Park.
Read MoreWriter Shelley Weinberg recaps the May 11 COS field trip to Humboldt Park.
Read MoreField Trip Leader David Rupp recaps the April 5 COS field trip to Humboldt Park.
Read MoreField trip report editor Kris Hansen recaps the February 24 COS field trip to Humboldt Park.
Read More