This report is a summary of year one of a two-year pilot project between the Minnesota Geological Survey and the Minnesota Department of Health Groundwater Restoration and Protection Strategies (GRAPS) program designed to support watershed planning efforts in the Zumbro River Watershed. Our goal was to provide a compilation of both surface and subsurface geologic data within selected Board of Water and Soil Resources One Watershed One Plan boundaries in a format suitable for both modelers and the general public. Seamless geologic products provided within the watershed are based on a compilation of previously published MGS maps along with new mapping where necessary. Compilation methods and limitations associated with the subsurface modeling processes are described in the report. These products were transferred into web-based 3D models so they could be readily visualized and used outside of a GIS environment by water planners, other state agencies involved in the GRAPS process, and the public. The 3D model is available online at https://arcg.is/fevGS.
Compilation of seamless surface and subsurface geologic data within the Zumbro River Watershed Boundary from previously published Minnesota Geological Survey County Geologic Atlases along with new mapping where necessary. This report documents the steps taken to compile MGS mapping in the Zumbro River Watershed for both the unconsolidated Quaternary sediments and the underlying bedrock layers. It is a summary of the compilation process and should not be used as a guide to explain the geology. The geologic data compilation is available for download in the supplementary GIS files. A web-based 3D geologic model is available for viewing the data (https://arcg.is/fevGS) with a direct link in the report. The unconsolidated Quaternary data is shown with a series of points referred to as a texture-based point model and the bedrock data is shown as a series of raster surfaces.
Minnesota Department of Health
Steenberg, Julia; McDonald, Jennifer; Retzler, Andrew; Hamilton, Jacqueline.
OFR21-03, Compilation Geologic Model for Zumbro River Watershed: A Pilot Project.
Minnesota Geological Survey.
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