Minnesota Department of Transportation and the Minnesota State University, MankatoThe Prehistorical Hydrographic Model (PREHYD) raster feature dataset was developed as a model of prehistoric surface hydrographic features in Minnesota.The purpose of this dataset is for use deriving variables for predicting archaeological site locations in Mn/Model Phase 4 (Mn/Model4). This dataset is best suited for general reference only. It is not suitable for precise land measurements or ground surveys. For more information please visit MnModel's website: https://www.dot.state.mn.us/mnmodel/index.htmlEstimated from about 10,000 BP to the time of the Public Land Survey in Minnesota (1848-1907). gSSURGO data for 2017 were used. PREHYD was created in 2018.Fileswater-prehist-hydrographyengPublicMnModel Prehistoric Hydrographic Model [Minnesota]DatasetsMinnesotaMinnesota Geospatial Commons