Hydrologic Unit Codes

National Whitebark Pine Restoration- OTHER ANCILLARY RANGEWIDE LAYERS

All GIS layers are raster with 1 km pixel resolution. Spatial extent is for US only unless otherwise specified


Name: Hydrologic Unit Code (HUC) 4,6,8

Format: ArcGIS grid



Contact: USGS

Description: Watershed Boundary Datasets defining areal extent of water drainages, at Subregion (HUC4), Basin (HUC6), and Subbasin (HUC8) levels, includes Canada.

Units: Hydrologic Unit Codes, with associated watershed names

Download Links:

Hydrologic Unit Code 4: huc4

Hydrologic Unit Code 6: huc6

Hydrologic Unit Code 8: huc8