Michigan Department of Natural ResourcesLake Trout Refuge boundaries were created from coordinates described in FO-200 (see document for more detail). There are four refuges in Michigan waters—two in Lake Michigan (North Part, and Mid Lake) and two in Lake Huron (Mid Lake, North End). Note that the shoreline and State of Michigan extent depicted in this dataset are the same as the ones depicted in the Michigan Great Lakes Grids (v3.3).ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/c17a8097ce81451c86bde6e1b8c87451_7engState of Michigan Open Data PortalPublicLake Trout Refuges - Institute for Fisheries Research (IFR) [Michigan]Web servicesMichiganLast Modified: 2026-01-06