Next Meetup

Denver Buildings Importathon - Golden Location
To keep up the momentum of the amazing importing that happened in October, we'll have another importathon before the end of the year. December 20th will be our weather delay if it's going to make much difference. Learn more about the Denver Import and follow progress @ Background: This past fall a few skilled OSM-ers in the Denver community worked with the Denver Regional Council of Governments (DRCOG) to prepare an import of Planimetrics building footprints, professionally created from 3” imagery. The goal is to import the over one million buildings in the 9-county metro area of Denver by an organized team of OSMers committed to tackling the project to contribute and validate a series of small bulk uploads. This is where you come in... we want you to be on this team. All mappers are welcome, no matter how much, or little, time you have to help; each batch should take 1 hour or less; but don't feel you need to finish an entire task, make a note and come back, or another mapper can finish where you left off. However, the workflow for the import requires some familiarity with the JOSM editor. There are plenty of resources to get you started beforehand; such as For the import itself, you will want to familiarize yourself with: * The wiki-page about the import: * Especially helpful is to read through the Workflow document: - this is still a bit of work in progress, so we'll go through it once or twice together at the beginning of the mapathon. Most important! Community practice ( is to use an OSM account designated for imports; this also helps us track progress, users, etc. as well as make sure you have access to the projects. Follow the instructions in the workflow above. Doing so ahead of time will help us get going quicker with the walk-through. If you come late, no worries, we'll all be helping each other in these importathons anyway so better explanations might evolve as it gets later. Don't forget to bring: Laptop with working and updated JOSM editor and a mouse is highly recommended.

New Terrain Brewing Company

16401 Table Mountain Parkway · Golden, CO

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    What we're about

    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 4,000,000 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.

    For other OSM related groups in Colorado visit the Colorado Groups ( page.

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