Hi Scott,
The U.S. Coast and Geodetic Survey web site has some good background on the
types of monuments and markings they used. I can't find the specific
address at the moment, but if you google them and spend a little time
poking around you should be able to find something--if memory serves it was
in a history section of the web site..
The General Land Office issued a series of "Manuals of Instructions for the
Survey of the Public Lands of the United States." The series was continued
by the BLM when the responsibility of the rectangular survey was
transferred to them. I found a copy of the 1973 manual in a used book
store, but I wouldn't be surprised if Google Books has scanned one or two
pf the earlier editions.
Dave
On Mon, Jan 6, 2020 at 10:19 AM Williams, Scott <[log in to unmask]>
wrote:
> I'm looking for info on 18th or 19th century survey marks inscribed on
> rocks or rock faces, done for Public Land Surveys or small local surveys.
> If anyone has any experience with these, or knows good references, I'd
> appreciate hearing about them. I'm working on a project trying to determine
> the origin of small boulders marked with letters and symbols that appear to
> be survey or mapping symbols. I can send pictures to anyone interested.
>
> Thanks,
>
> Scott Williams
>
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