The Federal Emergency Managment Agency and the MNDNR produce Digital Flood Insurance Rate Maps (DFIRM) for selected counties in the state. These maps are often referred to as...

These sets of data include the drinking water supply management area boundaries and the vulnerability levels within each management area in Minnesota. More information can be...

Wellhead Protection Area (WHPA) is the Minnesota Department of Health (MDH) approved surface and subsurface area surrounding a public water supply well or well field that...

These are provisional representations of Public Waters Basins (lakes, wetlands) and Watercourses (streams, altered channels) as depicted on the scanned paper regulatory maps and...

The County Well Index (CWI) geodatabase was developed by the Minnesota Geological Survey (MGS) and is maintained in cooperation with the Minnesota Department of Health (MDH)....

The DNR Hydrography Dataset is the centralized SDE data storage for master versions of DNR hydrographic spatial features (effective 2012). It includes the authoritative...

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

HISTHYD is a model of surface hydrographic features at the time of the Public Land Survey in Minnesota.

This is a set of the impaired waterbodies as determined by MPCA's surface water quality assessment process, approved by the US Environmental Protection Agency (EPA) on...

This is a set of the impaired waterbodies as determined by MPCA's surface water quality assessment process for the 2024 reporting cycle to US Environmental Protection Agency...

This is a set of the impaired waterbodies as determined by MPCA's surface water quality assessment process for the 2024 reporting cycle to US Environmental Protection Agency...

This Vulnerable Groundwater Areas Feature Class illustrates quarter sections that meet at least one of 3 conditions across the state. The first condition includes soil mapping...

Inventory of springs in Minnesota. These data are collected and compiled by the Minnesota DNR as a tool to help create awareness of and appreciation for this resource so spring...

This is a proposed set of the waterbodies assessed by MPCA's surface water quality assessment process for the 2022 303(d)/305(b) integrated report to EPA. Please consult the...

These areas were deliniated in 2008 and 2009. Drinking water supply management area for a surface water intake (DWSMA-SW) is the Minnesota Department of Health (MDH) endorsed...

Source water assessment area (SWAA) is the Minnesota Department of Health (MDH) interim surface and subsurface area surrounding a public water supply well that completely...

These areas were delineated in 2002 and 2003. The source water assessment area for community public water supply systems using surface water intakes includes three distinct...

Stream segments with Strahler stream order values assigned. For more information about Strahler stream order, see: http://en.wikipedia.org/wiki/Strahler_Stream_Order Stream...

This is a feature class of measured stream routes and is a core feature class within the DNR Hydrography Dataset.A "route" is an ESRI linear feature type created through a...

This is a draft set of the waterbodies assessed by MPCA's surface water quality assessment process for the 2024 303(d)/305(b) integrated report to EPA. MPCA Impaired Waters Web...