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ECO Trekkers

Historic Photos

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Me and my husband used to live near the one in the Photo of New Mexico and before benhcmark hunting was a popular thing we use to go all over the Country looking for them now we have a place to log them and will do our best to get back to some very neat benchmarks that dont have pictures yet.

He just got back from the Louisiana Monument Stone The beggining of all the Surveys of the Public Lands.Can't wait till FEB. 1,2003 The Louisiana Purchase Monument is going to open back up.BM(EH2910)

A Point in the right direction,ASCENSION.

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wonderful site with amazing photos!! thanks for sharing it. i wonder...does anyone know the PID for the Geodetic Center of the United States referred on the sign in the photo on aforementioned website? that would be a good one to "find".

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The original North American Datum base station, Meades Ranch, was seriously damaged or destroyed long ago and reset as KG0640, which may or may not still employ the original disk set in 1891. The original azimuth mark, Waldo, KG0648, survived somewhat longer but may now be gone also and has never been reset according to the record. You can read about the history and evolution of the North Anmerican Datum at the NGS website. The special significance these points once had ended when the entire network was readjusted in 1983 to a more advanced spheroidal model of the earth.

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