First of all, you should be carrying at least 2 liters of water per person with you. Other than Chicken Springs Lake, there is no reliable water source until you get to Rock Creek or Soldier Lake, depending how you go at the trail junction. If I remember correctly, it's about 4 miles from Horseshoe Meadow to Cottonwood Pass, and then about 8 miles to Rock Creek. If you go to Soldier Lake from the trail junction, it's only 4 miles. Going forward from either location, water is not a problem. You don't have to go very far and you hike past a lake or stream. This time of year, there are streams running that don't run later in the summer. The biggest distance that you don't have water is from Guiter Lake and back down or to Trail Camp.