"Other then it's location I can tell you that it houses some unique Pokemon such as Vulpix and Chimeco. There might be others but those are the ones my agents have seen most frequent the site. They shouldn't bother you to much, the Chimeco are harmless and the Vulpix are skittish, be on guard though for anything we may have missed." She hands you a map to the ruins as well as a basic set of adventuring gear (a rope, first aid kit, flashlight, etc).
((Oh, sidenote, everyone human has a pokedex like machine (Rocketdex . they can act as a pokedex does and as a communicator/camera))