[time-nuts] National Geodetic Survey Bench Mark
rdarlington at gmail.com
Thu Sep 15 00:51:29 UTC 2011
It is a hobby called benchmarking. Check it out over at geocaching.org.
I've tracked down several that hadn't been seen in many decades, updated
Uncle Sam with current coordinates (hand held gps so they can find them and
then survey it at high precision later if they want to).
On Wed, Sep 14, 2011 at 6:45 PM, <lists at lazygranch.com> wrote:
> A bit OT but there are way more markers out there than USGS. But getting
> the official coordinates is another story. I've seen DMA (defense mapping
> agency), various county markers, and I think a US Coast guard marker. I
> found one in Nevada close to 100 years old. (Photographed it, but I can't
> publish it since it is near a plane crash site.)
> I can see how visiting these could become a hobby. There is that
> "confluence" group that takes photographs where integer lat and lon meet.
> And of course geocachers.
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