OpenStreetMap US

Have you ever wanted to know who has been mapping around where you live? Harder than it should be! Not anymore! Martijn van Exel created a tool that makes finding your fellow local mappers as easy as drawing a box on a map and clicking a button. Join this lightning talk to find out all about it.

Next up in State of the Map US

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Improving OSM lake polygons using LiDAR data

Jun 20, 2025 · Jake Low

Using 1-meter LiDAR-derived DEM data from USGS, I was able to generate very accurate polygons for thousands of lakes in the Wind River Range which were missing from OSM or were only...