Nate, As I read [interpret] the 2009 Manual (Chapter II Measurement): Basis of Distance:2-2. "The distance reported is the horizontal measurement at t...

Nate The Surveyor, post: 365004, member: 291 wrote: How do you enter these into a "Rectangular coordinate" software? I wrote my own software (BASIC)...

Dave Karoly, post: 364984, member: 94 wrote: You forgot to mention "modifrickinfried" somewhere in your post. 😉 Ya mean "modifrickinFIED" right? W...

Nate The Surveyor, post: 364857, member: 291 wrote: I am not necessarily saying it does not work. I am saying that MIXING geodetic polar coordinates, ...

I dunno Nate, it's worked pretty well for the PLSS for the last couple hundred of years...B-) Here's a recent BLM Plat from Utah: I have navigated to ...

The National Archives has most (if not all) of the ICC filings. I have acquired Val. Maps for both active and defunct Railroads from them in the past....

rfc Download this USGS Professional Paper (1395): It will tell you pretty much everything your ever wanted to know about Map Projections (and a lot m...

A spheroid (ellipsoid) is just a shape, NOT a datum. Any given datum uses a specific spheroid (ellipsoid), but is also realized by a mathematical rela...

Paul in PA, post: 364346, member: 236 wrote: I resubmitted today because I realized I had input wrong antenna height last night. Never before saw an z...

These were sold back in the 80s by several "suppliers" in the Northwest. This was the Pre-Internet mail order days, and I remember seeing it listed in...

mkennedy, post: 363508, member: 7183 wrote: Probably an ignorant question, but could those users who were reporting WGS 84 actually have been recordin...

I have a copy of that "map" somewhere. A true classic. B-)

A Harris, post: 363235, member: 81 wrote: Half use the State Plane system and the other half use the Local Zone system and others are on some national...

A Harris, post: 363162, member: 81 wrote: I can open a file in GNSS Solutions and return the values to WGS84 Latitudes and Longitudes with one easy ma...

andrewm, post: 363138, member: 10888 wrote: This vertical reference point should be surveyed to the nearest one hundredth (0.01) of a foot in referenc...

I would NOT trust (in an absolute sense) any "sheet, list, or compilation" concerning this matter. I see Plats, Projects, Designs, etc. expressed in ...

Jim Frame, post: 362783, member: 10 wrote: Closer to $25k for a single workstation license. GAMIT (from MIT I believe) is about the same price ($25k...

Art S, post: 362699, member: 8983 wrote: To Brian AllenSurveyors do not determine the rights that others have in land. We find evidence to prove our w...

JaRo, post: 362627, member: 292 wrote: I'm still not any closer to figuring out my problem. For the time being I have been changing my rod height by ....