GIS Library Contents - MetadataPLSS Section Boundaries |
This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.
Descriptive name | PLSS Section Boundaries | |
File name | trs | |
Spatial domain | Pima County | |
Abstract | trs displays the smallest unit in the Public Land Survey System; Township/Ranges are subdivided into 36 Sections; each Section is approximately one square mile. These polygons are maintained in the Parcel Fabric. This layer has been adjusted to Section corner data from the GIS parcel Section AutoCAD drawings. It also includes the half Township South of 12S14E Sections 31-34, designated as 12F14E (field TR). TOWNSHIP and RANGE field values are four characters where the last two characters indicate the direction where 01 is North, 02 is East, 03 is South and 04 is West. See more information. | |
Known errors/qualifications | The Canoa Land Grant area is not part of the Public Land Survey System. The trs layer includes sections in 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 type | polygon | |
Feature count | 9,310 | |
Thumbnail Map | trs.pdf (755,187 bytes, PDF created 04/24/2024 ) | |
Projection | NAD83 HPGN (Parameters) | |
Rectification | parcel | |
Field/value metadata | Field metadata | |
Source organization | ALRIS | |
Source contact | ||
Source document or file name | ||
Source date | 1988 | |
Source scale | 1:24,000 | |
Source format | Coverage | |
Second source name | Pima County DOT | |
Second source contact | Steve Whitney | |
Second source document or file name | ||
Second source date | 1992 | |
Second source scale | ||
Second source format | Database | |
Date of last data update (This date may not be current.) | 20161219 | |
Last data update by | Gary Szilagyi | |
Date/time last touched - Meaning? | 2024-04-24 12:57 AM - Enterprise GDB - Library input format | |
2024-04-24 07:08 PM - Shapefile | ||
See coverage files, if any, for date. | ||
Lineage | The TRS layer for Pima County was extracted from a state-wide layer of PLSS Section boundaries as received from ALRIS. The ALRIS layer was tablet digitized from USGS 7.5 minute topographic quadrangle paper maps. In 1992, a database of Section corner locations was acquired from ADOT, and the TRS layer was adjusted to match those ADOT Section corners that were surveyed to an acceptable level. In 2010, the Section boundaries were adjusted to Section corner locations from the GIS parcel AutoCAD drawings. In 2021, the section boundaries were converted from AutoCAD .dwg to feature class, and maintained in the Parcel Fabric. | |
On maintenance? | Yes | |
Maintenance organization | Pima County ITD | |
Maintenance frequency | Varies | |
Maintenance description | Boundaries are updated on a case by case basis, usually to be in congruence with parcels that border Sections, and occasionally to reflect the traverse information found on official documents. | |
Original conversion by | ALRIS | |
Pima County ITD GIS contact | Steve Whitney | |
Alternate Pima County ITD GIS contact | ||
On Pima County Geospatial Data Portal? | Yes |