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tom3rd

Horizontal order definitions

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I may try to find a benchmark that says "HORZ ORDER - THIRD"

In searching the NGS sites all I can find in terms of defining the accuracy of various horizontal orders was something to the effect that the order or class system is no longer used.

 

O. K. When it was in use, what were the accuracy definitions?

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Bottom line: Even Third Order Adjusted marks will be way more accurate than your GPS receiver. If you find it, you can use it to check the accuracy of your GPS.

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