Extent of available data.
This data layer is Lake Bathymetry-Digital Elevation Model (DEM). It was developed by the Minnesota Department of Natural Resources. Bathymetry is a measure of the underwater depth and shape of a body of water. It is represented by a 5 meter (occassionally 10 meter) DEM. The depth and shape of a lake basin are important for understanding the physical and biological processes that occur within the lake. They can also give guidance to anglers when choosing locations to fish.