I did the Whites in my HH ULBA hammock when I thru'ed in 03. I'm using my homemade one this July 4. I think the only extended time above the treeline is the Presidentials and most can make it in one day. This year I'm staying at the lake of the clouds hut but you could stay in the "dungeon" (under the hut). From there you will be able to get to the osgood campground shown in the pictue. Packrat form the "Hikers Welcome hostel" in glencliff has a great stealth campsight map and does shuttles. Also if you go on AMC'S (I hate the AMC by the way, Jerks are selling our own national park to make it a yuppie playground with their $75 bunks and $8 shelters....control youself). websight they have shuttles that go from Pinkham Notch to Franconia Notch and all points in between. In any case all the campgrounds and shuttles are in hammockable woods. The whites are absolutley breath taking.