Thought I would post if you are not aware back in June of this year there was a well explosion this wonderful Marcellus shale crap. Well it contaminated the major water source. The rangers told me this weekend that the safe measure is 200 ppm and the current contaminate reading is at 2000 ppm you cannot safely filter boil or treat the water for consumption. The company involved is supposedly using a sub pump to pump out the spring that is contaminated and will be some time till you can get water from any stream or spring in area so that said you will need to stash water or plan on carrying enough water for the 70 mile plus loop.