I had a merit badge for surveying and the first engineer related job I had one summer was interning with some surveyors.
Just last year I saw a guy walking around with a stick that had a black box on top. I was cooling my jets waiting on the wife so I engaged him and asked what he was doing, and was astonished when he said surveying.
Apparently, they set it on a known point in the morning for calibration, then trigger a readout where they are looking for a survey point around the city.
Technology has taken all the romance out of things like surveying. The math was a pain at times, but it always kept you truthful.
Kind of interesting that technology has taken something that use to be an occupation and made a fun challenge out of it.
Just out of curiosity, what do you hide?