OpenStreetMap (OSM), aka the Free Wiki World Map, is an openly licensed map of the world being created by volunteers. Contributors use local knowledge, aerial imagery, GPS devices, and low-tech field maps to verify that OSM is accurate and up to date. Learn how to update your neighborhood on the map or help fix existing bugs by playing MapRoulette. Stop by anytime and start mapping. Pizza (while it lasts), drinks, tutorials, and support will be provided!
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