In Oregon and Washington 18"x24" is required for recordable surveys and subdivision plats. I believe that is so in other recording states as well. Tha...

I love and used resection’s a lot when i was in the field. When doing topo or staking probably more than 95% of my instrument positions are resecte...

1. Topo - How far? About 300 feet for paved surfaces. Up to about 500 feet for graded surfaces. Natural ground, maybe 1000 feet. But if I could do 1...

That's a surprise to me because Esri has supported the Oregon DOT systems for a while, Thanks. I guess that there is an ID-10t user error, not a so...

If we changed the name of the unit to "Mendenhall Foot" perhaps people would have less trouble letting go of it.

Switching from US to international feet Welcome to the 0.3048 club.

is it possible the the way you use the term CORS is different than what most consider CORS..... I've got to agree that this is probably the case. T...

... wanting to learn Magnet Field. By the questions you have asked it appears that you already know what there is to know about Magnet Field.

When an engineer contracts for a survey he/she should specify the expected deliverable. I have heard of surveyors just delivering points and letting...

Have you ever verified a CORS determined position? I’m at a loss as to how I’d verify a CORS position without using CORS data. for the record, I...

My starting point is an hour of office time for every hour of field. This can easily vary by a factor of 2 in either direction. Also - my estimat...

No confusion, just tell me step by step how I do that. In order to establish control in a certain realization of NAD83 you need to begin your measu...

Translations from one realization of NAD83 to another are always rubber-sheet type affairs - not something I'm interested in from a surveying perspect...

IF you want a mag to stay...no tag and countersink the thing in asphalt. Old surveyor trick that works if the asphalt still has some flexibility - ...

I find the auto level a bear to work with especially when the receiver is at a joint in the rod, or laser line is way high. That sounds like you ar...

People with GIS backgrounds were asking about PLS licensure for these control matters. They fail to understand that licensure exists because of bounda...

I had never heard of the AAGS before. I'm interested in their training materials and certificate program. Will look into that further.

We've had the discussion here about grid is ground. Oregon has had a system of Low Distortion Projections incorporated in state statutes for a deca...

A good webinar. If you missed it you can catch the recorded version in a week or so.