There are lots of organizations out there placing brass discs to mark 
things. You might even find a disc placed by the U.S. Coast & Geodetic 
Survey (a benchmark) that is not listed in the published database we 
have access to.

Robert & Linda Smith wrote:
> While doing some maintenance on a cache for a friend of mine I found 
> this mark that I thought was a "Bench Mark",  I guess not. It was 
> placed by the U.S. Dept. of the Interior - Bur. of Land Management.  
> The marking on it seems to be "T14NR2W" below that is "1/4" and below 
> that is S8 | S9 so I guess I have NOT found a bench mark.  Oh well...
>
> Bob Smith, Prescott
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