The National Map Corps celebrates one year of crowd-sourcing successes in collaborative mapping.

April 02, 2014  -- This April marks the one year anniversary of the USGS's The National Map Corps (TNMCorps) transition from a small regional pilot project in the heart of Denver, Colo., into a very successful nation-wide project.  During the past year, civilian volunteers in every state have increasingly provided accurate mapping data to the National Geospatial Program's publically available application called The National Map

Using crowd-sourcing techniques, TNMCorps' Volunteered Geographic Information (VGI) project engages citizen scientists to collect manmade structures data including: schools, hospitals, post offices, police stations and other important public buildings. 

By The Numbers:

Over the past year TNMCorps has achieved the following significant milestones:

  • 1,422 – volunteers
  • 42,009 - contributions (counts each person’s edit per single point)
  • 33,698 - unique points edited (individual structures)
  • 50,696 - total number of edits (the sum of all edits made by volunteers)
  • 50  - number of states involved
  • 18 - number of volunteers who have earned more than 500 points
  • 4,691 -  state with largest number of edited points; Colorado 

"This project has proven that we can count on volunteers to provide quality information to be included in authoritative government databases", said Kari Craun, Director of the National Geospatial Technical Operations Center. "The people that have contributed their time are performing a community service by ensuring key structures data are available publically." 

Becoming a volunteer for TNMCorps is easy; go to The National Map Corps project site to learn more and to sign up as a volunteer. If you have access to the Internet and are willing to dedicate some time editing map data, please consider participating. Participants can earn badges and public recognition by submitting a series of points. 

While some familiarity with the area that a volunteer chooses is helpful, you do not have to live near a particular place to contribute. The  tools on TNMCorps website, along with ancillary information available on the Internet, are generally sufficient to edit a distant area.


Mark Newell,
Phone: 573-308-3850

Pat  Phillips
Phone: 703-648-5931

Elizabeth McCartney
Phone: 573-308-3696

Review Article Be the first to review this article
Teledyne Optech:


Featured Video
GIS Analyst for City of Elk Grove at Elk Grove, CA
Teledyne Optech
Textron - Countless CAD add-ons, plug-ins and more.

Internet Business Systems © 2016 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation TechJobsCafe - Technical Jobs and Resumes  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy