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Pima County Hydrogeologic Subbasins (Alluvium & Bedrock)

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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 namePima County Hydrogeologic Subbasins (Alluvium & Bedrock)
File namehgbasin1
Spatial domainPima County
AbstractHGBASIN1 displays the areas of alluvium and bedrock within the subbasins of Pima County. A complimentary dataset (HGBASIN2.shp) aggregates these features based on the SUB_BASIN field.
Known errors/qualificationsThis dataset is an amalgamation of a number of datasets. SUBBASIN (\\pygmyowl\pygmyowl3\sdcp\covers) was used as the base layer for eastern Pima County. The SWA_HGAHGN.shp was overlaid to define hydrologic basin boundaries across the entire county.

The hydrogeologic subbasin boundaries of eastern Pima County vary from hydrologic subbasin boundaries in places where information from field studies and the literature detailing subsurficial geologic phenomena are available. This research was conducted by Julia Fonseca at PCFCD.

Bedrock areas in western Pima County (those areas west of the SUBBASIN coverage) were derived from the AZGEOLOGY_SP83_PIMA.shp.
Feature typepolygon
Feature count 1,945
Thumbnail Map hgbasin1.pdf PDF file format   (1,291,011 bytes, PDF created 07/19/2022 )
ProjectionNAD83 HPGN (Parameters)
Field/value metadata Field metadata
Source organizationUSGS
Source contact
Source document or file nameswa_hgaphgn
Source date20070601
Source scale
Source formatShape
Second source nameE. L. Montgomery and Associates
Second source contactStaffan Schorr
Second source document or file name\\gislib\sourcedata\montgomery\azgeology_sp83_pima
Second source date20070702
Second source scale
Second source formatShape
Date of last data update
(This date may not be current.)
Last data update byCory Jones
Date/time last touched - Meaning? 2021-05-11  10:53 PM - Enterprise GDB
  2021-05-11  10:53 PM - Shapefile - Library input format
  See coverage files, if any, for date.
On maintenance?Yes
Maintenance organizationPC ITD GIS Special Projects
Maintenance frequencyVaries
Maintenance descriptionAs further field studies are conducted by PCFCD staff or as additional literature becomes available, basin boundaries may be modified. Any boundary and/or attribute changes to this dataset should also be made in HGBASIN2.SHP.
Original conversion byCory Jones
Pima County ITD GIS contactCory Jones
Alternate Pima County ITD GIS contacte-mail address
On  Pima County Geospatial Data Portal? No

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