National Map Corps

The National Map Corps is a volunteer program that helps update and improve geographic data for the U.S. Geological Survey. Participants contribute by verifying and adding information about features like buildings, roads, and landmarks to ensure maps are accurate and current. This effort supports various applications—such as emergency response, urban planning, and environmental management—by providing reliable geographic information. Volunteers typically use online tools to review and improve map data, making their contributions accessible and impactful across the country.