Ice.

Ice; Cold today at Young Gulch! My Camelback waterline froze an hour into the hike. I don't remember being at Young Gulch before with the stream in this state.... After I bit I grew brave and started walking on some of the shallower ice - even enjoying the startling feeling when my foot would sink an inch. Cool to practice just barely touching the ground as I stepped. Kind of exciting, though I did keep hoping for a bit of sunshine!