SPY SATELLITE TARGETS IN THE UNITED STATES (PART #2)

#corkboardtv #satellitetargets #casagrande

In this episode of Corkboard TV (Part #2) I go exploring near Casa Grande, Arizona, looking for satellite targets left over from the cold war. Come along and see them up close and from the air with my DJI Mavic Pro drone. Below is more information on the targets from Wikipedia.

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Cheers,
Scott

FROM WIKIPEDIA..

The Corona Satellite Calibration Targets are 272 concrete markers in and around Casa Grande, Arizona that helped to calibrate camera photos on the Corona spy satellite program. The markers formed a square 16 x 16 mile grid, maintained from 1959 to 1972. About half of the original markers can still be found on Google satellite maps and ground inspection.

Following the launch of Corona satellites in the 1960's, the National Reconnaissance Program (formerly known as the National Foreign Intelligence Program) determined that there was a need for calibration under the Controlled Range Network. Working with the Arizona Real Estate Office, the Army Map Service was directed to lease land for office space in Casa Grande, Arizona. Land was leased in one hundred by one hundred foot parcels, with access to a road. Large concrete Maltese crosses in the ground, sixty feet in width, were in place by 1967. The crosses were arranged in a sixteen by sixteen grid, each roughly a mile apart from the next one.

Each of the targets has a manhole or hatch on the west arm of the cross, The manhole has a cement cover and steel re-enforcement bars ("rebar"). According to Gary Morgan, member of the Cold War Museum in Warrenton, Virginia, the 6 pieces of rebar, which protrude at an equal distance from each other, may have been used to hold laser lighting to give a more accurate fix on each target.

The majority of the targets were abandoned when the program ended in 1972. According to Army Map Service, the government considered the targets to be obsolete because the land on which they were situated had subsided because of groundwater extraction. Land lessees were then given the option of having the targets removed and dumped near Eloy, Arizona. At least 143 targets (counted on February 18) remain in place, unless they have been removed because the location has been redeveloped

Here is the link to some of the remaining targets.

https://www.google.com/maps/d/viewer?mid=1IudNrZA1xnpWjKlscWlSakQHDKo&ll=32.77977449258581%2C-111.74079025000003&z=11

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