9 thoughts on âProtein Pile-up: Common Cause of Brain Diseaseâ. 1  Interesting article by Dr. Collins. 2  This is an exciting discovery and Iâll be looking forward and following new developments. 3  You make this sound like it is normally happening to everyone.
Summer months are pretty hot, especially at the bottom of the canyon, where it can be well over a hundred. The best hiking weather is generally April and May, and late September through October. But then, these are the hardest times to get backcountry permits. You would send your applicAtion on May 1 for a permit date any time in September.
July/August would be hot, but as noted it rarely gets hot at the North Rim of the Grand Canyon or at Bryce, or any other high elevation location for that matter. Arches, Canyonlands, Zion, Monument Valley, Mesa Verde will most likely be 90+ and that's not comfortable hiking weather.