Conservation District Trustees to be Appointed Posted on 06/03/2012 by Cal SkinnerJune 4, 2012 The Conservation District had a grand opening for its Glacial Park Visitors Center.At the McHenry County Board meeting on Tuesday June 5th, its members will be asked to approve Brandon E. Thomas, Huntley Bona J. Heinsohn, Harvard for terms to the McHenry County Conservation District that will end June 30, 2017.