Water - Maps & datasets
Watershed boundaries
Watershed boundaries and basins.
What this shows
Watershed boundaries and basins.
Coverage (inferred)
United States
Freshness
2026
License
Public Domain (US Gov)
Source
USGS
Provenance
Cartouche · Provenance
Watershed boundaries
Source
USGS WBD - HUC, 2026
Method
Reference dataset
License
Public Domain (US Gov)Commercial OK
Attribution
USGS / USDA-NRCS Watershed Boundary Dataset (public domain)
Coordinate system
EPSG:4326
Freshness
2026
Cite as
cartian:layer:land-watersheds@ref-311a5383
Version
vref-311a5383
Pin
As-of referencefrozen 2026-07-18
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