City of Surprise GIS Department
City of Surprise GIS Department

City of Surprise Geodetic Survey Home Page
Interactive Survey Control map

View Interactive Survey Control Map		 Download PDF Maricopa County, Arizona Low Distortion Projection (3.5 MB)

Adobe PDF Evaluation of Survey Control Stations Height Stability in Subsidence Zones 

Adobe PDF American Consulting Engineers Council (ACEC) 2007 Engineering Excellence Awards entry
This paper gives an explanation of the City of Surprise Low Distortion Projection coordinate system.

Adobe PDF Surprise Low Distortion Projection coordinate system presentation
This presentation, given to the Arizona Professional Land Surveyors (APLS), provides an explanation of the City of Surprise Low Distortion Projection coordinate system, and compares it to other coordinate systems.
City of Surprise Geodetic Survey
16000 N Civic Center Plaza
Surprise, Arizona 85374
North 33.638015º West 112.326688º (NAD83)
North 1,641,209 Ft East 2,476,656 Ft (Surprise LDP)		 Ron Dry, RLS 
Chief Land Surveyor
623-222-7543 direct
480-258-1456 cell
email:
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Official Seal of Surprise, AZ
Defining Vibrant, Southwest Living
16000 N. Civic Center Plaza   Surprise, AZ 85374   City Hall Hours: Monday - Thursday; 7am - 6pm
Phone: 623.222.1000  |  TTY: 623.222.1002  |  Phone Directory