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Developed using GIS technology and modern delineation techniques to create a base-watershed dataset, these new DNR Catchment delineations will facilitate projects related to hydrology and hydraulic design, watershed assessment, water quality and clarity, fish and wildlife management, planning activities, and GIS analysis. Used alone or as a system of upstream - downstream drainage areas, Minnesota DNR Catchments define the elementary drainage 'building blocks' used to create watersheds and hydrologic units of varying sizes from site-specific and localized projects to regional studies associated with small scale map information. The upstream - downstream relationship of the DNR Catchment polygons is maintained in the dataset attributes. For example, Minnesota DNR Catchments with upstream contributing catchments aggregate upwards within a DNR watershed hierarchal classification system to define hydrologic units of larger sizes. In particular, Minnesota DNR Catchments share coincident boundaries that combine to define Minnesota DNR Basin Watersheds, Minnesota DNR Minor Watersheds and Minnesota DNR Major Watersheds. Minnesota DNR Catchments can also be combined to define Minnesota DNR Level 01-HUC 1 through Minnesota DNR Level 12-HUC 12 watersheds. The Minnesota DNR Catchment dataset is the maintenance version of watershed delineations in Minnesota. |
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Developed using GIS technology and modern delineation techniques to create a base-watershed dataset, these new DNR Catchment delineations will facilitate projects related to hydrology and hydraulic design, watershed assessment, water quality and clarity, fish and wildlife management, planning activities, and GIS analysis. Used alone or as a system of upstream - downstream drainage areas, Minnesota DNR Catchments define the elementary drainage 'building blocks' used to create watersheds and hydrologic units of varying sizes from site-specific and localized projects to regional studies associated with small scale map information. The upstream - downstream relationship of the DNR Catchment polygons is maintained in the dataset attributes. For example, Minnesota DNR Catchments with upstream contributing catchments aggregate upwards within a DNR watershed hierarchal classification system to define hydrologic units of larger sizes. In particular, Minnesota DNR Catchments share coincident boundaries that combine to define Minnesota DNR Basin Watersheds, Minnesota DNR Minor Watersheds and Minnesota DNR Major Watersheds. Minnesota DNR Catchments can also be combined to define Minnesota DNR Level 01-HUC 1 through Minnesota DNR Level 12-HUC 12 watersheds. The Minnesota DNR Catchment dataset is the maintenance version of watershed delineations in Minnesota. |
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<a href="metadata.html">Back to main DNR Watershed Suite metadata page</a>
These data consists of over 10,000 watershed polygon delineations in one seamless dataset of drainage areas called Minnesota Department of Natural Resources (DNR) Catchments. The DNR Catchment dataset extends into adjacent states and Canada where water flows into Minnesota, or a Minnesota bordering water, and/or where the DNR Catchment extends across the state boundary. <a href="MN DNR WATERSHED SUITE UPDATE 2023.pdf">The 2023 Watershed Delineation Update</a> includes additional catchments that represent watershed contributing areas that flow into a Minnesota bordering water. These catchments were derived from the USGS HUC12s that represent these watersheds and integrated into the catchment dataset. The USGS HUC12’s were extracted from the WBD Dataset on March 2023 and were checked for harmonization of polygon boundaries using ArcGIS 10.8.1 topology tools.
Minnesota DNR Catchments are the smallest delineated and digitized drainage area mapped by the Minnesota DNR Watershed Delineation Project. The overall goal of this mapping effort is to produce the best watershed delineations available that reflect the current hydrology of the landscape as interpreted from as many data sources necessary to derive acceptable catchment delineations. Minnesota DNR Catchments are delineated from the perspective of hydrologists who refrained from allowing cartography to drive the delineation linework. This was accomplished by excluding political boundaries and cartographic esthetics during the delineation procedure, focusing instead, on landscape hydrology. Minnesota DNR Catchments contain all of the land area (including all water features), upstream from, or between DNR Pour Points. Therefore, Minnesota DNR Catchments are not scale dependent. There is no size limit as to how large or small the delineation may be, an individual DNR Catchment in the dataset may represent the drainage area of a 1-acre prairie wetland or a 100-acre recreational lake.
For a more detailed background on this data, follow this link to the History and Standards of Watershed Delineation in Minnesota and the DNR Watershed Delineation Project https://www.dnr.state.mn.us/watersheds/history_standards.html |
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<i>USE AGREEMENT:</i><br>
- Use of the data are constrained by the Minnesota Department of Natural Resources General Geographic Data License Agreement agreed to at the time of data download from the Minnesota Geospatial Commons.
<i>ACKNOWLEDGMENTS:</i><br>
- As defined in the DNR License Agreement, users of this data must credit the <i> Originator </i> on published maps and analysis.<br>
- The user shall include the Minnesota DNR source data <i> Title</i> (name). <br>
- The user shall include the Minnesota DNR source data <i> Publication Date</i>.<br>
- For example, <i> Source:</i> DNR Watersheds - DNR Level 08 - All Catchments, <i> Originator:</i> Minnesota DNR - Division of Ecological and Water Resources - Watershed Delineation Project, <i> Publication Date: </i> 11/01/2023.
<i>USE CONSTRAINT COMMENTS:</i><br> - See Cartographic Lineage, Logical Consistency, Positional Accuracy, and Currentness Reference for further discussion of data capture.
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- The DNR Catchment dataset is specific to the state of Minnesota and is not part of the USGS Watershed Boundary Dataset (WBD). <br>
- As a whole, DNR Catchment delineations do not represent DNR Lake Watersheds. Individual DNR Catchments are not lake watersheds (lakesheds) unless the DNR Catchment is a DNR Headwaters Catchment. |
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DNR Watersheds - DNR Level 08 - All Catchments |
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["Water, watershed, drainage area, contributing area, hydrologic unit, hydrologic unit level, level 08, HUC, catchment, direct contributing area, sub-watershed, major watershed, minor watershed, basin watershed, lake watershed, hydrology, hydrography, watershed ratio","Minnesota"] |
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