actually the maps on that site are the exact same maps in the wiki
from the link i gave you if you're looking for a specific monster scroll down and find that monster, click on it, and it'll have a list of where it can be found. click on that link and it'll give you a map
or you can go to the main page of the wiki. go to monster index. find the one you want, click it. again, you get to a page that lists drops, its location, etc. click a location and it'll take you to the page for it that has a map on it.