National Wetlands Inventory (NWI)

The National Wetlands Inventory (NWI) is a comprehensive mapping program managed by the U.S. Fish and Wildlife Service. It identifies and documents wetlands across the United States, including swamps, marshes, and bogs. The NWI provides detailed maps and data that help scientists, policymakers, and land managers understand wetlands' locations, extent, and types. This information supports conservation, planning, and management efforts to preserve these vital ecosystems, which are important for biodiversity, water quality, and flood control. Overall, the NWI is a critical resource for protecting and understanding wetlands nationwide.