Michigan Department of Natural ResourcesThis layer was created in 2018 using ArcGIS 10.5. The layer uses the shoreline of the 10-minute grids (v3), with divisions between the Great Lakes and connecting channels based off of: Michigan waters 1. Descriptions in the 2000 Consent Decree for the boundaries between the St. Mary's River and Lakes Huron and Superior, and the boundary between Lakes Michigan and Huron. 2. The description in Fisheries Order 200 for the boundary between the St. Clair River and Lake Huron. 3. The description in Fisheries Order 242 for the boundary between Lake St. Clair and the Detroit River boundary 4. Descriptions in the Michigan Fishing Guide 2016-2017 for the boundary between the Detroit River and Lake Erie. 5. Boundaries in the 1:24,000 National Hydrography Dataset (downloaded 2012) for the boundary in Michigan waters between Lake St. Clair and the St. Clair River.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/098acc92620446138903913ce92058fd_4engState of Michigan Open Data PortalPublicGreat Lakes Connecting Channels [Michigan]Web servicesMichiganLast Modified: 2023-05-22