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.
Maps and Directions. Grand Canyon is located in northern Arizona. The national park spans the Colorado River from Glen Canyon Dam in the east to the Hoover Dam and Lake Mead in the west. Both the North Rim Lodge and the South Rimâs Grand Canyon Village are accessible via two-lane highways. The South Rim is open year-round, and the North Rim is open from mid-May to mid-October each year, unless early or late snows make the road impassable.