Natural Heritage Inventory County Maps

The Natural Heritage Inventory (NHI) County maps are based upon data from the Wisconsin Natural Heritage Inventory. These maps are intended as a tool for the public to use in identifying areas with known occurrences of rare species (endangered, threatened and special concern) and other sensitive resources (high-quality natural communities and significant natural features) to the section level.

Information presented in these maps is generalized to protect rare and sensitive resources. Because these maps do not identify the specific locations of endangered resources, they are appropriate for general planning and assessment purposes only. The NHI County Maps are not an appropriate resource for screening or reviewing a proposed land development or land management project for potential impacts to endangered resources.

If you need information about whether a proposed project may impact rare species or other sensitive resources, please request an Endangered Resources Review of the proposed project. This Review provides a letter to the applicant listing rare species, high-quality natural communities, and significant natural features found in or near the proposed project area. The letter will also provide specific recommendations to enable projects to comply with the Wisconsin Endangered Species Law (29.604 state stats.) and other laws/regulations protecting rare species.

If you need more specific information about Endangered Resources Reviews, please contact the NHI Review Program.