Wisconsin Department of Natural Resources

Wetland indicators map

The Wetland indicators map shows soils mapped by the USDA Natural Resources Conservation Service in the drainage classes of somewhat poorly, poorly and very poorly drained soils. Soils mapped within these drainage classes are soil types typically found within areas designated as wetlands. Therefore, this map layer can be used to identify potential wetlands. For more information on the mapped soil types please use the "identify tool" and link to the USDA Natural Resources Conservation Service web soil report.

Note: The Wetland indicator layer should be used in conjunction with the Wisconsin Wetland Inventory Layer to make a preliminary determination of the potential for wetlands on a given property. If the property contains the pink shading the property has soils commonly found in wetlands and can be used as an indication that wetlands may be present on the property. The yellow shading indicates wetlands mapped on the Wisconsin Wetland Inventory. If the map shows yellow or pink shading you should contact a wetland professional to visit the property to conduct an on-site investigation. Only a wetland professional can verify wetlands are present on a property.

Disclaimer: The Wisconsin wetland inventory and wetland indicator map are important tools that can be used to provide a preliminary indication of wetland presence on a property. There are cases where wetlands exist on a property where these maps do not show wetlands or indications of wetlands. This is due to the scale of aerial photography used to map soils and wetlands. Small wetlands and areas of wet soil are often not shown on these maps. Therefore, it is critical to also conduct an on-site investigation of the property to verify the presence or absence of wetlands.

There is no attempt, in either the design or products of the Wetland indicators map or the Wisconsin wetland inventory, to define the limits of jurisdiction of any Federal, State, or local government or to establish the geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities involving modifications within or adjacent to potential wetland areas should seek the advice of appropriate Federal, State, or local agencies concerning specific agency regulations. The only method of determining the legal extent of a wetland for state regulations is a field delineation of the wetland boundary by a professional wetland delineator.