Yahtuul is a rarely-seen bioluminescent subterranean creature with pasty whitish skin and clawed feet who occasionally feeds on unwary litterers. He has therefore recently moved his lair to its current location, in order to stay close to his food source. When he's not sucking the juicy marrow from the snapped femurs of the inconsiderate, Yahtuul enjoys an occasional book. However, he is always seeking out new and different reading material. Feel free to pay him a visit, and peruse his collection.
So yes, this is a book cache. Yahtuul doesn't have any kid's books at the moment; he was on a bit of a sci-fi kick as of this initial post. The cache is an ordinary ammo can, so keep that in mind as far as possible book sizes. I was going to make this a lot harder to find, but I settled on this location because I think it's a cool area. It should be pretty easy to get to and to find. Please re-hide it thoroughly and remain inconspicuous during the search - this area can get a lot of traffic in the summer.
N 40° 31.065
W 79° 49.052
Sometimes in the winter, they close the gate to the parking area. They do that mainly to keep out degenerates and to avoid having to plow it. People still come by to walk their dogs - they just park by the gate instead.