GIS Library Contents - Metadata RFCD Grid-based Aerial Photo Grids

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		RFCD Grid-based Aerial Photo Grids
File name		fpgbgrid
Spatial domain		Pima County
Abstract		The RFCD Grid-based Aerial Photo Grids layer shows the six area PLSS section grids originally defined for the RFCD grid-based aerial photo project. The grid areas are defined as Tucson (TU), Arivaca (AV), Sasabe (SA), Ajo (AJ), Why (WY) and Lukeville (LU) each with their own origin distinct from PLSS TRS numbering. The original photo grid coordinates have since been translated to PLSS section coordinates. Both are included in this layer's attributes. This layer assisted with understanding the grids and their extents and may have little value now that we've associated PLSS section coordinates with each photo and grid section.
Known errors/qualifications		While the grid's origins match the original project's grids, many grid extents have been arbitrarily extended for convenience and to include photo areas not shown on the available paper map of the grids. This layer is static. It's only for the completed grid-based photo project.
Feature type		polygon
Feature count		4,812
Thumbnail Map		fpgbgrid.pdf    (545,762 bytes, PDF created 07/19/2022 )
Projection		NAD83 HPGN (Parameters)
Rectification		parcel
Field/value metadata		Field metadata
Source organization		Pima County ITD GIS
Source contact		Steve Whitney
Source document or file name		trs
Source date		20191231
Source scale
Source format		Geodatabase
Second source name		Pima County RFCD
Second source contact
Second source document or file name		Paper document of photo grids dated as year 2000.
Second source date
Second source scale
Second source format		Paper
Date of last data update (This date may not be current.)		20191231
Last data update by		John Dickinson
Date/time last touched - Meaning?		2020-11-05  11:29 PM - Enterprise GDB
		2020-11-05  10:53 PM - Shapefile - Library input format
		See coverage files, if any, for date.
Lineage		PLSS section geometry for this layer was largely derived from the Pima County layer (trs), but also includes sections from portions of adjacent Pinal (pinaltrs) and Santa Cruz (scc_trs) sections.
On maintenance?		No
Maintenance organization		Pima County ITD GIS
Maintenance description
Original conversion by		John Dickinson
Pima County ITD GIS contact		John Dickinson
Alternate Pima County ITD GIS contact
On  Pima County Geospatial Data Portal?		No

 GIS Library Data Layer Metadata