What NGS accomplishes per employee puts most other agencies to shame.

Write your senators and congressmen.

The discussion has gone to projections, but did you see what the original poster said on page 2 of this thread? Actually he did mention somenthing a...

Steel expands about 12 ppm per degree C. I'm not going to tackle the definition of the factor as X vs 1/X.

I've read worse. He does mention some of the pitfalls and recommend a professional in at least some cases.

10 mm ~= 0.4 inch

Was the other surveyor using the factor to account for a mapping grid versus surface distances, or for a temperature difference between steel fabricat...

How do you think it came about? Was the twp line not marked before the subdivision into sections?

The assumption needed is that the lines have the same bearings. There is no need to assume they are cardinal.

If pressed for time, on this question you note that A and C have the same easting and guess one of them. Your odds are only slightly less than 50%.?ÿ ...

If there is a fence on the property line that gets a jog due to the land shifting, does the fence still hold with its jog, or is it now off line becau...

Monuments of course are on top, but coordinates could eventually rise to the level of bearings and distances.?ÿ Land owners can't do much with bearing...

Pole plumbing, prism constant, and PPM are all much less than 2 ft.?ÿ If you are shooting 1300 ft more or less perpendicular to the line you want to m...

The record north lines of 17 and 16 are given in chains. I can't read the coordinates for certain due to the fuzzy picture. ?ÿ

As one of the comments says, the hole was probably there and the videographer put a nail in the hole to see what would happen.