Viewing: 1-2 of 2
Gary Schenk - May 5, 2010 10:27 am - Voted 10/10
NitpickingThat's a triangulation station, not a bench mark.
Because of the procedures used in pre-GPS surveying, triangulation stations are only accurate for horizontal position. Benchmarks are accurate for vertical position.
Dean - May 5, 2010 11:34 am - Hasn't voted
Re: NitpickingI see the words Triangulation station on the marker. I always thought they were benchmarks.
Thanks Gary, that is worth knowing.
Viewing: 1-2 of 2
Comments
Post a Comment