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re: How do surveyors determine elevation of land?

Posted on 8/13/16 at 6:45 am to
Posted by Cowboyfan89
Member since Sep 2015
12839 posts
Posted on 8/13/16 at 6:45 am to
Depends on what you are surveying, but the benchmarks I have used have not been there that long. Hell, some of them weren't there when we got there.
Posted by Pectus
Internet
Member since Apr 2010
67302 posts
Posted on 8/13/16 at 6:49 am to
Well, the man wanted to know about sea level.

And benchmarks that are recent are there now because of being based off of other older benchmarks.
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