Yes Vinny, you are exactly right. The Land Surveyor gathers the data in the field to create topo maps. I have been in every habitat that Florida has to offer, from the mangrove islands of the Florida keys , the saw grass plains of the everglades,the cypress swamp, the high longleaf pine scrub of the panhandle, and crack town in the inner city jungle. Personally I would rather be in a swamp. LOL. Three of the four men on Mount Rushmore were surveyors at one point in their lives. The job isn't always easy, but it is always a good challenge. Your friend, snookman