A person occupied with surveying -- the process of determining positions on the earth's surface.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "surveyor" in a sentence
"It became clear that the surveyor was the main personality at a Scud launch."
"Simon Chase, a 25-year-old surveyor from the English city of Birmingham, said he never considered not making the journey to Sandwich, even though he was well aware of the weather forecast."
"The surveyor was a young English doctor named William John Wills, whose principle qualifications seem to have been a respectable background and a willingness to go."