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TNMCorps Project Webpage

TNMCorps is an online crowdsourcing mapping project with volunteers successfully editing structures in all 50 States, Puerto Rico, and the U.S. Virgin Islands. As part of The National Map, structures include schools, hospitals, post offices, police stations, cemeteries, and other important public buildings. By updating and verifying structures data, volunteers are making significant contributions to USGS National Structures Database, The National Map, and ultimately U.S. Topo Maps!

Anyone with an interest in contributing can volunteer. It is easy to sign up and get started! All you need is access to the internet, an email address, and a willingness to learn. “How to” documentation including a comprehensive User Guide and a Quick Start Guide will have you up and editing quickly. Begin editing in your own hometown or anywhere in the U.S., Puerto Rico, and the U.S. Virgin Islands.

Volunteers earn virtual badges for participating and are recognized for their contributions (with permission) via USGS and National Map social media.

Our new editor:

 New to The National Map Corps? Start here!








Project Updates

4/11/19 ------------------------

Mapping Challenge Update - City / Town Hall Structures in the Washington, D.C. Area

Many points are coming in!

Check out the Mapping Challenges page for more information.

4/2/19 ------------------------

Mapping Challenge Update - Interactive Web Map Available!

The Interactive Web Map for our Mapping Challenge is now available!

Check out the Mapping Challenges page for more information.

3/25/19 ------------------------

March 2019 Newsletter

The March 2019 Newsletter is now available!

Check out the Newsletters page for more information.

Click Here to check out more Project Updates


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