Trail head Elevation: 3818 Feet Top Elevation: 5,900 Feet Trail Type: Out-and-back Range: 2.7 Miles from Rancheria Falls Type: Moderate to Strenuous Tiltill Valley is a remote valley in northern Yosemite National Park. It is accessible only to hikers. The valley is most easily reached via trail heads in the vicinity of the Hetch Hetchy Valley and Lake Eleanor. The valley provides access to many remote alpine lakes throughout the largely untamed wilderness that defines the northern portion of Yosemite National Park and the adjacent Emigrant Wilderness. This route tours the northern edge of Hetch Hetchy Reservoir. Across the lake, the views of Kolana Rock and the sheer granite walls of the Grand Canyon of the Tuolumne are majestic, contrasting pleasantly with the intimate serenity of Tiltill Valley. The trail was barely used. Strewn with broken trees and branches. We had to jump over some big branches and I have a few scratches to show for. This is one of our three day hikes from the base camp in Rancheria falls Sunday. It was a solitary hike. No one was there at all. We can not see the trail at 5900 feet. At the top at 5900 feet there was about two feet of snow. We were sinking and it was fun for a little bit but without our snow shoes it just won’t work. We also decided that since we can not see the trail it is not safe to proceed. So we headed back down to camp.