The picture on the left is a "cap". The picture on the right is a "disk". Rarely do you see a brass "cap" in concrete, yet how many surveyors state they found a "brass cap in concrete" when it is actually a disk? And if you really want to be specific you can call it "bronze". Early USGS and USC&GS surveyors called the disks "tablets". And, always remember, "bench mark" is two words despite what the geocachers think. 🙂
"And, always remember, "bench mark" is two words despite what the geocachers think."
Except in Frankfort, KY.....
On the disk, it looks more like, "BENCHMARK", than, "BENCH MARK"
(the space between, "GEODETIC", and, "SURVEY" is more pronounced)
Quite so,,and on the cap it's B.M. So one needs to report finding a B.M. for that one and a BENCHMARK for the disk. I believe if you use all caps BENCHMARK is acceptable.
According to Webster.
Dictionaries are supposed to be a reflection of our current usage of words.
Since I have seen the word/phrase used both ways, I would suspect that it is acceptable either way.
Here is what Merriam Webster says...
