Glacial Lakes Conservancy (GLC) is a non-profit land trust with a mission to permanently protect and preserve land and water resources for future generations. Glacial Lakes Conservancy is a private, non-profit land conservation organization servicing Sheboygan, Manitowoc, Calumet, Fond du Lac & Kewaunee counties. Glacial Lakes Conservancy, as a land trust, is a nonprofit organization that, as part of its mission, actively works to conserve land by undertaking or assisting in land or conservation easement acquisitions.