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Message Subject
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ancient 105,000 Mile canal grid in South Africa producing enough to feed 5 billion people
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Poster Handle
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MarPep |
Post Content
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Definitely man made, way too regular to be dunes - but 75' seems kind of wide for an irrigation canal - maybe if you had barges with a 30ft beam passing each other.
Quoting: Johnny Be Good Canals reported as 750 feet wide, one mile apart.
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