Colac losing iconic landmark Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Contractors are demolishing a red-brick chimney on the former Bonlac butter factory site because of safety concerns. Contact the authorby Kate Deppeler November 14, 2012 COLAC is losing one of its iconic landmarks. Unlock full access to Colac Herald - Subscribe today! Subscribe Now Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Tags: Business, History