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OpenStreetMap (OSM) Colorado is a local collaboration of people interested in contributing their efforts to create free maps. We encourage all of our mappers to organize or suggest mapping events throughout Colorado. Meetup activities can be simple social mixers, OSM basic to advanced training, or community mapping parties, which may include: hiking, skiing, mapping an entire town, and more. We also work with other groups on mapping, GIS and volunteer projects.

OpenStreetMap is a collaborative and world-wide community of more than 1,000,000 mappers who are working together to build a free street level map of the world.

If you are new to OSM, visit the New Mappers page.

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Committed to Mapping Denver, Front Range and Points West!

  • April 25 · 5:00 PM

    FRCC Humanitarian Mapathon

    11 OSM Mappers | 5.00

    Volunteers from the Front Range Community College student body, faculty and the public will map infrastructure to support a humanitarian mission (La Ceiba, Honduras) …... Learn more
  • April 19 · 5:00 PM

    CSU Humanitarian Mapathon

    19 OSM Mappers | 5.00

    Volunteers from Colorado State University student body, faculty and the public will map infrastructure to support a humanitarian mission (exact project TBD) …from the... Learn more
  • March 2 · 5:00 PM

    UNC Humanitarian Mapathon

    60 OSM Mappers | 5.00 | 2 Photos

    The University of Northern Colorado's Geography and GIS department will be hosting an OpenStreetMap Humanitarian Mapathon at Weldwerks Brewery in Greeley. Using... Learn more
  • January 25 · 5:30 PM

    Mappy Hour

    8 OSM Mappers | 5.00

    Let's get together to socialize and discuss 2017 OSM Colorado activity ideas. Generally our Mappy Hour meetups do not involve any actual mapping but instead give us the... Learn more
  • Nov 29, 2016 · 12:00 PM

    OSM Brown Bag Lunch Talk

    2 OSM Mappers

    I will be delivering a talk on the basics of OpenStreetMap as part of CSU's Geospatial Centroid's ( Brown Bag Lunch Series.
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What's new

  • Russell Deffner founded OSM Colorado

    on July 8

Founded Jul 8, 2010

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