Loyal, post: 450515, member: 228 wrote: I have had quite a few requests for NAD27 UTM(s) lately, and I finally figured out the reason. "They" were bas...

eapls2708, post: 450455, member: 589 wrote: Try that with your I-thingamajig! NO!

To add to Evan's post, I prefer paper maps (drawing with aerial) to a handheld GPS. The mere process of finding myself on the aerial helps with findi...

Nice example, Mr. Fleming. Partly from my training and education in a PLSS state and also being a geologist, I would add the dimensions of the stone ...

WOW! That went smoothly, I didn't notice a thing. 😉

paden cash, post: 449793, member: 20 wrote: The molybdenum mine in Climax use to blast on the weekends. Back in the '60s it wasn't uncommon for a mes...

Holy Cow, post: 449757, member: 50 wrote: Good one.By the way, two weeks ago on a Wednesday evening, I reached Climax at 6:43 p.m. Well, I know you ...

John,I'm no help for setting anchor bolts in concrete. In the mines I have worked rock bolts are set to stabilize the back (lay term is ceiling) from...

An idle aside: I see that three posters in this thread have let their CFedS expire.

John, It looks like NGS has only updated some of their photos. This is a Leica AX1202GG antenna and included in the photos for PAPH. They also have...

Check with the NGS about photos taken of the old equipment.Also, you might download data before and after the change and post-process with PARL. Mayb...

I have two suggestions. Go through the outlines for the first and last modules and review the 7 module quizzes.Oh, and put fresh batteries in your HP...

Loyal, post: 449086, member: 228 wrote: Yeah...maybe.It should have taken about 1 minute to find! ALWAYS check the Antenna Type & HI FIRST!I think...

This spectacular photo was taken by Alan Dyer on Sept. 27, 2017. The purple "rainbow" to the left is called a "Steve". The main aurora is to the rig...

I look at elevations from GPS a little differently Moe. I normally get decent ellipsoidal heights from OPUS and esp. OPUS Projects. My problem is wi...

Shawn Billings, post: 449042, member: 6521 wrote: The velocities would need to be non-linear. In this case, piecewise linear functions is the only wa...

MightyMoe, post: 448978, member: 700 wrote: Let's hope no surveyor or anyone else is using it for elevation control:( This station does not have a lo...

For John's example of CORS station WVCV, it may be that instead of upgrading/revising the coordinates the better solution would be to revise the veloc...