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Datasets / Rivers

RiversDEM

3D Hydrography Program (3DHP)

USGS elevation-derived hydrography. Lidar-based flowlines that succeed the NHD.

Flowlines, waterbodies and hydrologic units derived from 3DEP lidar so that streams line up with the elevation model. It replaces the NHD and Watershed Boundary Dataset as coverage grows.

Source
U.S. Geological Survey
Resolution
Lines from lidar elevation
Data type
Lines and polygons
Time span
Annual releases since 2025
Temporal
Annual
Access type
API (external) · The National Map API, no key
Formats
File geodatabase, GeoPackage
Coverage
United States (growing) (-180, 17, -64, 72)
Licence
Public domain (U.S. Government work)
Provider page
www.usgs.gov/3d-hydrography-program

Access

tnm3DHP files for the box (The National Map)

curl -fsSL "https://hydrological.org/api/v1/datasets/usgs-3dhp/links.txt?bbox=-123,43.5,-121,45.5" \
  | xargs -n 1 curl -fLO

Also available as JSON: links · manifest · dataset record