GL_Mackinac 2019 ESI INVERT Polygons, Lines
These feature classes reside within the BIOLOGY Feature Data Set of the Great Lakes - Straits of Mackinac - 2019 ESI Geodatabase.  It contains vector polygons and lines representing INVERT data for the Great Lakes - Straits of Mackinac study area.

The study area includes the Straits of Mackinac, nearby portions of …