by sonicred » Thu Oct 01, 2015 2:35 pm
I just did a weekend trip from Sunrise trailhead to Clouds Rest to Half Dome and back a week ago.
There is obviously water at the trailhead (Tenaya Lake). I found no water anywhere (as expected) until you get into that valley below Sunrise Mountain (that valley between the junction that takes you sunrise lakes and the junction farther west that takes you to the JMT). In this, the driest of dry years, I can say for certain that there was water on the CR trail in that area (~8900 ft) in September. You have three spots right on the trail to get water:
After you top out on the switchbacks and pass the junction to Sunrise Lakes, you will descend a short distance into the valley. Shortly after the trail flattens out, there is a very small creek. It is a trickle right now but still running (barely). There is a sizable pool of water on the left hand side as you pass through. No problems getting a Sawyer bag in that pool if you want.
About another mile down, there is a waist deep and icy cold pond/tarn right next to the trail (you can’t miss it). We took a ton of water here (for the rest of the trip) and it actually tasted pretty good. I started from the trailhead with 40 oz. of water and that was enough to get me here but it was not hot out yet. Depending on the temps, you may need more to get you up those switchbacks coming out of the Tenaya Lake area. I would probably just start out will a near full hydration pack and drink as much as you can before and on those switchbacks, as it is a long day of hiking.
About another 15 minutes or so past the pond, you will pass a series of 3 very small creek flows that you can easily take water from. I asked a dozen hikers on the switchbacks about water availability at these creeks and got differing answers. That is why I took water from the pond (a sure thing), as I did not want to backtrack in the event they were dry. All were are low but they are definitely flowing. The first one is currently wide enough that you need to step on some rocks in the middle to avoid getting your feet wet. You’ve got two more small crossings right after that and then you are not going to find water anywhere from there to the CR summit. The good news is that it is not very far from that point but plenty of uphill hiking.
This does not apply specifically to your trip, but as an FYI I was also able to take water on the west side of CR on the switchbacks at about 8,100 feet. This was a game changer because it allowed us to take a shortcut toward quarter domes, then cut west directly to HD.