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Hydrologic Unit Codes

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This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as feature count and date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.


Descriptive nameHydrologic Unit Codes
File namehucs
Spatial domainState of Arizona
AbstractThe United States was divided and sub-divided into successively smaller hydrologic units. Each hydrologic unit is identified by a unique hydrologic unit code (HUC) consisting of six or more digits. This layer contains a composite of the 6, 8, 10 and 12 digit HUCs for the state of Arizona.

Use the TYPE field to seperate HUCs by HUC class: HUC06, HUC08, HUC10, and HUC12.
Known errors/qualificationsThis layer has overlaping data and should not be used as a coverage.
Feature typepolygon
Feature count 5,066
Thumbnail Map hucs.pdf PDF file format   (15,379,098 bytes, PDF created 07/19/2022 )
ProjectionNAD83 HPGN (Parameters)
Rectificationsource map
Field/value metadata Field metadata
Source organizationUSGS
Source contact
Source document or file nameNHDH_AZ.gdb
Source date2012
Source scale
Source formatGeodatabase
Date of last data update
(This date may not be current.)
20121126
Last data update byunknown
Date/time last touched - Meaning? 2021-04-05  11:21 PM - Enterprise GDB
  2021-04-05  11:21 PM - Shapefile - Library input format
  See coverage files, if any, for date.
LineageElements of the WBD_HU6, WBD_HU8, WBD_HU10 and WBD_HU12 feature classes where combined into a single feature class.
On maintenance?No
Maintenance organization
Maintenance description
Original conversion byUS Interior Dept. / US Army
Pima County ITD GIS contactKenneth Maits
Alternate Pima County ITD GIS contacte-mail address
On  Pima County Geospatial Data Portal? No

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