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Roger Callaway's avatar

I was looking at data in the SE USA with a photo overlay. To my surprise there was a striking circular feature. Eventually i realized it was the area of the Savannah River Project, one of three US bomb production sites.

In the late 1930’s a mostly rural site in Georgia was depopulated and fenced. All around the original site, the population grew.

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Richard I Gibson's avatar

I have a post scheduled for early June on magnetic data from the Savannah River Plant - not degraded! :)

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Roger Callaway's avatar

No, what I originally saw as a possible astrobleme, is an artifact of a do not enter boundary.

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Linda Mussehl's avatar

Amazing!

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