Community Sauk Calumet Group of the Illinois Sierra Club to Hold Monthly Meeting on Monday, February 13 by Gary Kopycinski on February 5, 2012 Gary Kopycinski Author More in Community: Save the date for The Prairie Party at theNate June 17, 2026 Blackhawk Tower Plaza Demolition Begins June 9, 2026 Park Forest Housing Cooperative to Honor Former Residents Philip Klutznick and Jim Edgar June 9, 2026 Palos Park, IL–(ENEWSPF)–February 5, 2012. The Sauk Calumet Group of the Illinois Sierra Club will hold its monthly meeting on Monday, February 13, at 7:15 p.m. at the Frankfort Public Library, 21119 Pfeiffer Rd.