Some were digitized while referencing both legal descriptions of the areas and the hydro data. The attributes were added from MDNR classifications. Reprojected to Stateplane Coordinates by Daniel J. Daugherty. Reviewed by James D. Harlan on Oct. 27, 1997. Edited out spurious polygons and node errors on 2 ponds.
Limitations are generally user-defined.
Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section. BTG - Boating and canoeing. DWS - Drinking Water Supply. IND - Industrial Use. L1 - Lakes used primarily for public drinking water supply.