Набори от данни - Minnesota Geospatial Commons

MnModel Prehistoric Hydrographic Model, Minnesota

The Prehistorical Hydrographic Model (PREHYD) raster feature dataset was developed as a model of prehistoric surface hydrographic features in Minnesota.
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MnModel Historical Hydrographic Model, Minnesota

The Historical Hydrographic Model (HISTHYD) raster feature dataset was developed as a model of surface hydrographic features at the time of the Public Land Survey in Minnesota.
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Можете да получите също така достъп до този регистър, като използвате връзката API (see API документация).