Indeed I do need pictures. I am in the process of getting some from other folks who took a camera on their trip (I didn't). About treeline, there are places near Wheeler Peak, NM where the trees are almost at 13,000'. I read in this book, Mountains of the World, that the trees on Wheeler are some, if not THE, highest trees in the world. Come to think of it, the tree line on the Mexico volcanoes is pretty close to 13,000' also.