The Pima Association of Governments (PAG) and a number of local government jurisdictions participate in the Regional Orthophoto Project which started with the1998 project and continues with updates every few years. Each project includes imagery and some include elevation data.
The orthophoto projects for the various years are all different. Differences include methods, coverage areas, elevation modeling, resolution, and spectra (black and white or color).
The 2011 project includes:
See the PAG 2011 Project Map .
The PAG Orthophoto 2011 project imagery was gathered (flown) during April, 2011 through the second week of May, 2011 and is commonly identified as simply "April 2011". LiDAR elevation data was captured during March, 2011. Our Pima County MapGuide Maps use the layer name "2011/04 PAG Color Orthophoto Imagery". Delivery of the imagery started in 2011 and was completed at the end of February 2012.
Multispectral (color) imagery horizontal accuracy specification: