the NAD 83 coordinates were derived from those earlier coordinates I think the NAD83 coordinates were derived from the old measurements plus new me...

@not-my-real-name Have you read Norman Van Valkenburgh's books? He was a surveyor and turned out two or three novels and some history of the Catskil...

Math Teacher is obviously one. I'm another.I was an electrical/software engineer. I grew up with Dad always checking who was selling land to whom via...

Unless you think you are going to have to enter a validation code from the email they will send, then you can just mis-spell your name in the address ...

@holy-cow That makes sense, except that I have trouble ignoring the extra line at what you call 'c' and I still think it looks more like an ampersan...

It looks like ink has flaked off on places. L.....&stones Maybe even L..Mark&stones

One is writing descriptions in State Plane, the other one is using direct measurements with a total station. Using SPC distances on a plat WITHOUT ...

At the time the SPCs were designed, they probably didn't have the data in m manageable form to design LDPs. A card file of coordinates and elevations...

When you search on the NGS site for data sheets there is a selection to enable or disable questionable heights subsidence areas.

monuments that a few crews could not find In logging bench mark finds with NGS the best ones were those that had a previous Not Found but I did fin...