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GL_Mackinac 2019 ESI NAVIGATION/MARINE Polygons, Lines, Points

Published by Office of Response and Restoration | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 17, 2026 at 05:12 AM | Dataset Last Updated: September 01, 2019 at 12:00 AM
These feature classes reside within the SOCECON Feature Data Set of the Great Lakes - Straits of Mackinac 2019 ESI geodatabase. They contain vector polygons, lines and points representing navigation/marine area resource data for the Great Lakes - Straits of Mackinac study area. The study area includes the Straits of Mackinac, nearby portions of Lake Michigan and Lake Huron, and adjacent lands and waters in northern Michigan. These data sets contain information about the following resources: POLYLINES - ferry routes; POINTS - boat ramps, ferries, lock and dams, marinas, and ports; POLYGONS - access sites and anchorages. Object specific Type and Source information are stored in the related data tables, SOC_DAT and SOURCES (described below). These are stand-alone tables within the Geodatabase, designed to be used in conjunction with these spatial data layers. This data set is a portion of the ESI data for Great Lakes - Straits of Mackinac study area. As a whole, the ESI data characterize the marine and coastal environments and wildlife by their sensitivity to spilled oil, and include information for three main components: shoreline habitats, sensitive biological resources, and human-use resources.

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