Benchmarks

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Posted by w0ep on September 7, 2018 at 6:15 am

[Yesterday:  3 miles on a treadmill]

I have two recent pictures of survey benchmarks.  This first is from the top of Deer Mountain in RMNP.  I’ve looked at it and I don’t see the elevation, only a directional arrow.

 

 

The second is from the Bluff Trail at the Plymouth Bluff Center near Columbus, MS.

 

The designation appears to be 36A-2.  I thought the number (460.65) was the elevation. Sounded high to me so I looked up an online topographical map. No, the elevation is closer to 200 ft. I don’t know what the 460.65 means.

What I could do is go back and get the latitude and longitude and add it to the list of markers on geocaching.com.

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  • On September 8, 2018 at 7:14 am Sue said

    The one from the USACE showing the station is probably indicating the distance from the previous station (another marker). Reminds me of the plans I look at every day.

    It does see strange that there’s no elevation on these, particularly the mountain one. Where it indicates “DATUM” maybe they were supposed to stamp the elevation and either they didn’t do it or it wore off.

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