The only likely choices for vertical are NAVD88, NGVD29, and a city datum. There isn't a NAD or an 83 among vertical datums.

Lost Wedding RingWith a good treasure hunting detector (not a magnetic locator) and the right soil type you might find a wedding ring a foot down, but...

I'm embarrassed to be an Iowan. I can only hope the plan was prepared by someone from Wisconsin.:-D

Jim, I'm glad to see you take reporting recoveries seriously enough to have gotten your own reporting agency code. I've found too many marks with ora...

Looks like the mark is long gone.So people must rely on other bench marks derived from that one, which might be of varying accuracy. Does the city pr...

How many receivers does the VRS have monitoring and calculating corrections? Is one always closer to you than the CORS? Isn't being close the big ad...

I'd have the surveyor find the stones, set iron rods over them but at a depth that would not be disturbed by plowing. Then I'd have him set reference...

Use Least Squares program for resectionA least squares program is a quick way to do resection. No need to fight with a bunch of complicated formulas ...

>Did you dig for it?Nope. I was just scouting out as many as possible to report on while I had spare time in an area a couple hours drive from hom...

Is the NGS site working for people today? For some reason I can't get data sheets.

Check your tribrach calibrations before you measure the prisms. See an [msg=155602]old thread[/msg] that was recently resurrected for alternative met...

I'm not sure what country you are in - obviously not USA if you are thinking in meters. So we don't know what your property laws are. In nearly ever...

I get CD = 430.096Bearing FA = S 12 31 38.7 W. Note that you found AF, not FA which was asked for, and the problem asked for bearing, not azimuth.And...

Sounds like it might be from the jurisdiction the client is in - county or city. Get a more specific reference from the client. Of course, your stat...

Never employed in the survey industry.

>The West 128.58 feet of the North 50 feet of the South 109 feet of Lot 38 (except the West 33 feet reserved for the street)The tax map should help...