Thanks for the info Logan. I should have checked the weather first. I didn't realize it was getting so cold down there. I hiked half of Waterton Canyon yesterday. I was surprised at how open it was with only two ice constrictions before Green Bridge and very little sun. I didn't walk any further down since it didn't look like I would be boating it anyway. Thought the numbers would get a bit more sun and possibly be boatable. Oh well. Thx!