Cautionary note: please make sure you are either very familiar with the NF/MR or are with someone who is. I've been up the north fork drainage over 70 times and up the MR close to 50 times; three of those at night. That includes ascents in all four seasons. I would not have attempted this without that kind of familiarity with it. That being said I developed a deeper appreciation for Whitney via this experience that is hard to put into words.
