- Category: Water
- Data Type: GIS Data Layer
- Steward(s): Utah Geologic Survey, Department of Natural Resources
- Abstract: Wetland location and classification polygon map data, derived from the U.S. Fish and Wildlife Service’s National Wetlands Inventory (NWI), including information on wetlands, shallow and deep water, and riverine features. This layer will be updated approximately twice per year following the update schedule set by NWI.
The following data is available for download:
Water.Wetlands is derived from the U.S. Fish and Wildlife Service’s National Wetlands Inventory (NWI). NWI attributes wetlands with codes from the Cowardin Classification System; codes can be interpreted online. Cowardin classes in this derived layer have been split into separate System, Class, and Water Regime fields. Wetlands spatial data were produced from a combination of aerial imagery examination and on-the-ground assessment and are not meant to be used as the basis for a jurisdictional wetland delineation.
The associated metadata are a description of wetland mapping projects, including the scale at which mapping was conducted and the imagery year used for the mapping. Some mapping projects include supplemental map information that describes the projects in more detail. Most mapping in the state of Utah was conducted using imagery from the 1980s; the Utah Geological Survey is working to update wetlands data across the state. The location of recent and ongoing mapping projects can be found in the Projects Mapper.
- Wetlands will be updated approximately twice per year when NWI releases new updates. The current version is up-to-date as of June 18, 2019.