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PLSS Township Boundaries

Layer Thumbnail Map

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 namePLSS Township Boundaries
File nametr
Spatial domainPima County
AbstractTownship & Range is the basis of the Public Land Survey System with 36 square miles per township. These are maintained in the Parcel Fabric. See more information.
Known errors/qualificationsThe Canoa Land Grant area is not part of the Public Land Survey System. The tr layer townships cover the Canoa Land Grant area as if it had been included in the survey.

2021 - This layer contains a Stated Area field in square miles. This is a GIS calculated estimate and should not be used in place of official stated areas from the original documents.
Feature typepolygon
Feature count 279
Thumbnail Map tr.pdf PDF file format   (478,505 bytes, PDF created 12/02/2022 )
ProjectionNAD83 HPGN (Parameters)
Field/value metadata Field metadata
Source organizationALRIS
Source contact
Source document or file name
Source date1988
Source scale
Source formatCoverage
Second source nameUSGS
Second source contact
Second source document or file name7.5 minute quad maps
Second source date1988
Second source scale 1:24,000
Second source formatUnknown
Date of last data update
(This date may not be current.)
Last data update bySteve Whitney
Date/time last touched - Meaning? 2022-12-02  01:13 AM - Enterprise GDB - Library input format
  2022-12-02  02:27 AM - Shapefile
  See coverage files, if any, for date.
Lineage2011-01-18: Township boundaries have been adjusted to match the updated Section boundaries in the layer TRS. The half-Township, T12.5S R14E, has been reintroduced.
2021: Township boundaries were converted from AutoCAD .dwg to feature class, and maintained in the Parcel Fabric.
On maintenance?Yes
Maintenance organizationPima County ITD
Maintenance frequencyVaries
Maintenance descriptionBoundaries are updated on a case by case basis, usually to be in congruence with Sections or parcels that border township lines, and occasionally to reflect the traverse information found on official documents.
Original conversion byALRIS
Pima County ITD GIS contactSteve Whitney
Alternate Pima County ITD GIS contacte-mail address
On  Pima County Geospatial Data Portal? Yes

See Metadata Field Descriptions.
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