Oops...I didnt explain myself real well. What I meant
to say was that according to my memory, there was a
dimple and a disc - in different places on the marker.

BUT: I just took a swing by and took another look at
the top of the marker. There is no dimple, just a
disc. So I guess my memory failed me and my post was
pretty much pointless. Then the tp I suppose must be
the middle of the disc.

--- "Lowell G. McManus" <mcmanus71496@...> wrote:

> Michael Kaufman asked:
>
> > ...My question is
> > this: Is the exact tripoint
> > 1. the middle of the marker?
> > 2. the county placed disc?
> > 3. the dimple?
> > And HOW would we know? I would assume there can't
> be
> > too much official paperwork on 4th-level
> boundaries.
> > But maybe some general set of guidelines
> somewhere?
>
> The dimple! It was likely put there by the surveyor
> using a hammer and die to
> mark the exact point on the disc where the point of
> the plumb bob hanging from
> his transit came to rest. Any subsequent surveyor
> who measures from the
> monument will center his transit's plumb bob over
> the same dimple.
>
> Lowell G. McManus
> Leesville, Louisiana, USA
>

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