1989-1991 Aquatic Areas data for the Upper Mississippi River System
Dates
Acquisition
1989
Acquisition
1991
Summary
The Aquatic Area data sets were created by the Upper Midwest Environmental Sciences Center to identify areas of similar aquatic habitat, based primarily on large-scale geomorphic characteristics. These data are available as polygons and linears. The linear data set contains data for features too narrow to be mapped as polygons (e.g., wing dams, rip rap).
Summary
The Aquatic Area data sets were created by the Upper Midwest Environmental Sciences Center to identify areas of similar aquatic habitat, based primarily on large-scale geomorphic characteristics.
These data are available as polygons and linears. The linear data set contains data for features too narrow to be mapped as polygons (e.g., wing dams, rip rap).
