LAKE MICHIGAN SHORELINE (IGS)--
Shorelines, harbors, tributaries, and islands of Lake Michigan polygon layer, 2008
This layer was derived from a Lake Michigan shoreline layer from the Great Lakes
Geographic Information System of the Great Lakes Information Network, from
National Oceanic and Atmospheric Administration (NOAA) navigational charts.
The portion of the layer within Indiana was realigned by the Indiana Geological
Survey to create more accurate shoreline and tributary boundaries.
FGDC Metadata: Lake_Michigan_Shoreline