Two last quick notes:
There's trail magic at the start of segment 18 (about .5 miles in) curtesy of Burnt Boot. He's restocking around July 18th or so.
Also...for those who still can't find the Guidebook anywhere: They had 3 copies at the outfitter in Breckenridge when I was there about 10 days ago. I think the place was just called "Mountain Outfitters"
-lakewood
lakewood