Recent content by Paul Suthard

There is a big difference between an USGS (NGS) monument and a photo ID point with a target. I would double or triple the amount I quoted if permanent reference points to that degree are set. The information on both types of points is the same, one is permanent, the other is not so much.

Using handheld GPS units like Garmins or even the Trimble Geo's will get you close, but not good enough. Remember that every second of latitude is 100' on the ground and so then every 1/10th of a second is 10 feet. That's as tight as the consumer grade GPS units will get you. That's as good as...