The National Map Corps

Mapping Challenges

Mapping Challenges are a fun program that encourages users to edit a specific feature type within a geographic area.  Any volunteers who edit this feature type within the geographic area receive special recognition on TNMCorps' websites and social media pages. Areas chosen for a mapping challenge are directly tied to USGS's US Topo Map production.

Click HERE to learn more about U.S. Topo maps. 


Ongoing Challenges

We currently have three challenges open:

  1. NEW!! Schools with No Edit History in Colorado,
  2. NEW!! City/Town Halls in Iowa and Minnesota, and 
  3. NEW!! Law Enforcement in Kansas and Oklahoma