Coverage · DC
ToposNow indexes 5 USGS 3DEP lidar collections covering District of Columbia, flown 2012–2022, with vertical accuracy from 10 cm. 4 of them meet the 10 cm RMSEz survey-grade tiers (QL1/QL2).
Collections
5
Flight years
2012–2022
Best accuracy
10 cm RMSEz
Survey-grade (≤10 cm)
4
The 170.8 billion lidar points published for District of Columbia are free — but they arrive as raw tiles in national coordinate systems, weeks of GIS work from a design surface. ToposNow clips your exact site, reprojects to the coordinate system you work in, and delivers classified LAS/LAZ, Civil 3D-ready DXF surfaces, XYZ grids, GeoTIFF DEMs, or a print-ready contour map PDF — in minutes, priced per acre.
Every order starts with a free availability report: which collections cover your site, when they were flown, and their stated accuracy — before you pay anything.
District of Columbia has 5 published USGS 3DEP collections indexed by ToposNow, flown between 2012 and 2022. Coverage varies within the state — draw your exact site on the ToposNow map for a free availability report listing the collections, flight dates, and accuracy for your location.
The best collections covering District of Columbia state 10 cm RMSEz vertical accuracy on open terrain. The free per-site report quotes the exact figure for every collection covering your site.
Classified LAS/LAZ point clouds, Civil 3D-ready DXF ground surfaces, XYZ grids, GeoTIFF DEMs, and print-ready PDF contour maps — reprojected to any EPSG coordinate system (for example your District of Columbia State Plane zone) with vertical datum control. Delivery takes minutes after checkout.
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Source: USGS 3D Elevation Program (3DEP) WESM metadata, indexed 2026-07-10. Counts include every published collection whose footprint intersects District of Columbia. ToposNow deliverables are derived from published USGS lidar and are not a land survey.