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WGA Member

Joined: 2006-04-01
Posts: 504
Location: Manitowoc,Wi,USA

PostPosted: Fri Dec 26, 2008 6:59 pm Reply with quote Back to top

Here are a few benchmarking links that I had book marked and that I use often.
I hope that they can answer some of your questions and help you out.
This site has some great pictures of benchmarks. It also has an explanation of various benchmarks types. It also has a short history of benchmarks in the US and other countries.
This web page is from the US Department of Commerce. Which over sees the National Oceanic and Atmospheric Administration, and also the National Geodetic Survey.
One of the nice features of this site is the benchmarking index site. Which lists all 50 states. And does a nice job of showing where benchmarks are in your area. It also has a very nice FAQ page.
This link will take you to the Ground Speak forums site on benchmarking. And can be very informative.
Waymarking has a benchmarking group that you can post you recoveries to.

Vincit Qui Patitur 
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WGA Member

Joined: 2004-05-19
Posts: 782

PostPosted: Sun Dec 28, 2008 8:07 am Reply with quote Back to top
NGS datasheets for counties. This is the page you will need if you wish to download all the benchmarks for any particular county. THis is a ZIP file and will require the next link to open it to put it into GSAK.
The BMGPX program needed to take the NGS download and covert it to GPX file for GSAK.
The INFO source on just about everything benchmarking from those who take this very seriously. A GREAT tutorial on getting started - from not finding a disk, to tools needed, to programs to what does that mean??
This page taken from the NGS site explains everything on the datasheet from wht a PID means to geoid height etc. [/url]

It is those whose case is weak who make the most clamour. Pier Anthony 
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WGA Member

Joined: 2009-09-24
Posts: 496
Location: Oshkosh/Berlin

PostPosted: Wed Jun 23, 2010 2:43 pm Reply with quote Back to top
A very educational site on surveying from the Penn State College of Engineering.
Includes information on benchmarks.
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