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Image: Casa Grande-Corona Satellite Calibration Target- Cornman-Carmel-1

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Description: The Corona Satellite Calibration Targets were built in the 1960s in the desolate Arizona desert. They are large concrete crosses in the ground with a resemblance of a large Maltese Cross. The targets are only visible if one walked up to them or passed over them from a great height, like space. The crosses were roughly arranged into a 16 x 16 grid so that the satellites could orient themselves and focus correctly before actually spying on America's Cold War interests. When the Corona project ended in 1972, a number of the crosses were demolished. Only a few still remain scattered throughout the desert. This one is located in Casa Grande on the northeast corner of West Cornman Road and Carmel Boulevard.
Title: Casa Grande-Corona Satellite Calibration Target- Cornman-Carmel-1
Credit: Own work
Author: Marine 69-71
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: http://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes

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