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One of the first maps known to man was mad out of clay on a tablet and acient sumeria
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Classifications of the public lands, Most of the USG's early work involved conducting ground surveys of the west. The 19th century cartographers used a classic mapping technique called plane-table surveying.
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a cost gaurdman prepares to take pictures during a flieght.
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NASA launched the first LAN sattlite to produce data by LAN sattlite.
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Launched another sattlite earth observation system