"So a map with maybe two or three miles resolution for the continent will make me visit enough spots to be sufficiently sure I find any natives or particularly lurking dangers, I'll pick my favorite projection... A proper high-resolution survey of a twelve-mile radius from the camp would still take a very long time, but you don't need that high of a resolution to judge building suitability, only if you're actually about to build something on this particular spot..."
He does some quick mental math.
"If I stick to rough measurements and looking for building suitability for now I can do the camp area survey in two solid days. Twelve miles is big, I'm not that fast. I could cover an eight mile radius in a day. Exploration and a less rough mapping of the continent will take probably four or five days. I could speed that up but it risks missing something. Does four thousand six hundred eight rings for fast and skilled and mathematical work that still takes about a week sound fair to you?"