WBD_HU4: Four-Digit Hydrologic Unit

HU 4's have a 4-digit HUC and represent the 2nd level of division of the WBD.

 


This graphic shows an example of HU-4 Boundaries. Each Hydrologic Unit  is labeled with its 4-digit HUC

Field Name

Definition

Gaz_ID

Unique identifier assigned by GNIS, length 10.

Area_Acres

 

Area_SqKm

 

States

 

LoadDate

 

HUC_4

Numeric identifier for each level (2,4,6,8,10, and 12) of hydrologic units

HU_4_Name

Name assigned to each level (2,4,6,8,10, and 12) of hydrologic units

HU_2s are not included with the data

HU_14 and HU_16 are included only where created by local stewards.