1855 Manual of Instructions etc.There is a complete facsimile copy of the 1855 Manual w/PLATS (and many others from 1815 up thru 1881) in:"A collectio...

1855 Manual of Instructions (.pdf)> I wish someone would put up a scan of one of these. I don't so much want the actual book, but more the diagram...

> The best way is to figure out what kind of projection you would like BEFORE leaving the office, set that up in your office computer files and dat...

> I agree that it would be best to keep it in one system and just extend it out, keeping track of the distortion so I can relate it to ground local...

I have completely gotten away from the term "found."To me, "found" implies "LOST" (at some point).What I have been using is the term "recovered."If I ...

Dave...GEOID12a in UtahI couldn't figure out how to link to this post, so I just replied to it.This should give you a "feel" for the variation in the ...

JimI would think that the "D" record which contains the correlations would also be needed.Axx2014 7 4 14 7 5B2014 7 41339 14 7 5 025 1 page5 v1209.0...

Link didn't work (for me), maybe this one will:That seems to work.Great class, I've attended twice (2012 & 2014)!

JamesI need to build a little diagram to really put the answer you need into perspective (it can be kind of confusing without a "picture"). If you hav...

> > Setting aside the subdivision boundary, would you tweak (pin cushion or remove and replace to the record distances) the original RTK set mar...

Scale from WHERE?Just Look at the Projection Parameters of your SPC ZONE to see what's going on!Here's a good one in my neighborhood:NAD83Nevada EastT...

Blame WikipediaI didn't want to type the data from USGS PP 909 (which is in NGVD 29), so I just grabbed the data out of Wiki.USGS PP-909 lists Louisia...

Earth to KentI hate to be one to break the news to ya, but the vast majority of the aerial photography that I run into these days, is either in UTM or...

KentFace it Kent...you are trying to fix something that ain't broke.:-D Loyal

EarlI hear Earl, and maybe someday we can all get on board a 3-dimensional system.Unfortunately, GIS Folks, Realtors, and [some] Texans, are stuck in ...

KentThe Original RECORD Description in the Federal Patent AIN'T in no SPC Grid!Grampa homesteaded/claimed/bought the land that he could walk/farm/ranc...

JamesIn a "typical" 1ppm LDP (Transverse Mercator) that I would use in the Great Basin, the "Grid to Design Height" (projection induced scale/distorti...

State Plane Coords in generalIf SPC ain't getin'er done for ya, then why in the hell are ya using them to start with?GPS has made SPC obsolete big tim...