In a great many cases - particularly with plats and road alignments created in the last 30 years or so - the math fits the (undisturbed) monuments clo...

Day 1 went off OK. There were some technical glitches. I was unable to get into my preferred 2nd session of the morning. Not sure, but I think the pro...

@dougie I guess recordings of the session will be available later. So it's not totally irrecoverable. But yes.?ÿ The session would have been a very f...

This first session had a couple of technical hiccups. First, it sounds like some people who dropped out of the stream were unable to rejoin. There may...

I believe that pressing that big center button on the keyboard (TSC3) will cause the shot to be recorded.?ÿ

For the metric challenged that's 4-7 hundreths of a foot. I'll buy it.

All those things were invented, or came into commonplace use, in the 50 years before that, supplanting the gunter's chain, surveyor's compass, etc.?ÿ ...

@bill93 I'm not fully conversant with the math involved, but an OPUS position being the product of 3 vectors, all with an error of some magnitude, I ...

550 km is a long way. So far that I have to assume that you are not in the continental United States.?ÿ The word "Benchmark" leads some of us to assu...

@jaccen Hamilton Steel Mill. Manhole lids and frames are cast iron. That's a big difference.?ÿ

That crack sealing that is depicted, and seal coating, is perfectly legitimate maintenance. Keeping up with it extends the life of pavement dramatical...

@wendell I guess that is a measure of how major a priority "protecting people privacy" is to Facebook.

I also agree. Running CAD is a separate skill from preparing a readable map. Too often people get the former down passably, and stop developing.?ÿ?ÿ