dataset · USA
USGS 3DEP Lidar (AWS Entwine/COPC)
USGS 3DEP Lidar (AWS Entwine/COPC) (USGS). Access: S3 (anonymous) / EPT. Formats: LAZ, COPC. Resolution: point cloud. Coverage: USA. Pricing/licence: free (public domain).
Visit source ↗Source details
Licence: free (public domain)
Evidence quality: 46
Verified 2026-10-16 (curl HTTP 200).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- 3DEP LiDAR point clouds (public EPT copy) · Raw LAZ 1.4 3DEP original files (Requester Pays)
- Coverage docs-verified
- conterminous United States, Hawaii, and U.S. territories · data acquired over an 8-year period
- Resolution docs-verified
- full-density point cloud (no point spacing stated)
- Update frequency docs-verified
- Periodically
- Formats docs-verified
- LAZ 1.4 · EPT (LASzip-encoded octree)
- Access docs-verified
- Free, US Government public domain. Public EPT bucket allows anonymous S3 access with no AWS account; raw LAZ bucket is Requester Pays.
Useful for
- Use cases llm-inferred
- Floodplain cross-section and channel survey from point cloud for US flood risk studies · Drainage catchment topography (DEM derivation) for US site drainage strategies · Ground-truth terrain for line-of-sight or earthworks checks on US infrastructure projects
- Audience llm-inferred
- flood consultants (US projects) · hydrologists · drainage engineers · GIS analysts · civils engineers
Limitations
- Constraints llm-inferred
- Covers conterminous US, Hawaii and US territories only; no UK coverage · Public EPT bucket is not a complete 3DEP mirror; raw bucket is also not a complete mirror · Some sources have incomplete or missing CRS and have no EPT tiles · Update cadence is periodic with no fixed schedule · Point clouds need processing; no gridded DEM product is listed in this entry · Raw LAZ bucket is Requester Pays and requires an AWS account
Evidence
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.