Trails Update:
Snow line is around 8,000 to 9,000 feet, on average.
All park trails are open, however:
* The Half Dome cables are up for the season. The cables usually remain up through Columbus Day, which is October 12 this year. (Learn more about the Half Dome hike.)
* The southern portion of the Mirror Lake Loop is closed due to a rockslide. (Access to Mirror Lake and Snow Creek Trail is still available, as usual.) Learn more about the rockfall.
各トレイルの状況は以下
June 2009
Trail Conditions
Despite the recent weeks of warm weather and few storms expect winter conditions in the high country. Snow will be present on trails above 9,000 ? 10,000 feet depending on the aspect. Generally forested and shaded areas as well as north and east facing slopes hold snow later in the year than more open areas. Expect wet and muddy trails throughout the park. Please stay on the existing trails to limit resource damage and trail erosion. Always take caution crossing snow banks as they may be hollow or undercut. In addition, navigation may be difficult over snow covered areas as trails are not marked on trees, so be prepared and know how to use a map and compass. With warmer temperatures creeks and rivers are running high. Use caution when crossing or fording creeks. Some creek levels may fluctuate with the day’s temperature; a creek that was passable in the morning may not be so in the afternoon.
With warmer temperatures, creeks and rivers are running high. Use caution when crossing or fording creeks. Some creek levels may fluctuate with the day’s temperature; a creek that was passable in the morning may not be so in the afternoon.
Trails from Yosemite Valley
All trails to and along the Valley rims are clear, though there are still some patches of snow in the Ribbon Meadow area, making route finding difficult.
The trail to Merced Lake is clear of snow, but with a significant wet and muddy section in Echo Valley.
Glacier Point Road Trails
The trail to Ostrander Lake is mostly clear of snow, with some snow patches around the lake, though camping spots are readily available.
Hetch Hetchy
The trails on the Laurel Lake, Lake Vernon, and Rancheria Falls loop are open and clear; though expect to get wet from the spray from the base of Wapama Falls.
Trails beyond Moraine Ridge will still be wet, muddy and have significant snow coverage.
Tioga Road and Tuolumne Meadows
In general, most trails leaving from Tuolumne Meadows will have significant snow coverage on them of up to 100%, making trail travel and navigation very difficult.
The trail to Glen Aulin has significant patches of snow on the trail with snow coverage of 30% – 50% at times. Dingley and Delaney creeks are running high and can be difficult to cross. Furthermore, the Tuolumne River is high and is flooding the trail in sections particularly in the glen beyond the Glen Aulin High Sierra Camp.
The Grand Canyon of the Tuolumne is very wet requiring long sections (over 100 feet) of walking through cold, standing water. In addition, there is a necessary scramble around a flooded section of trail.
The trail to Cathedral Lakes has patches of snow on the trail, making route finding difficult but possible. Beyond Cathedral Lakes there is 100% snow coverage.
The trail up Lyell Canyon is very wet and muddy throughout with patches of snow. The trail to Vogelsang has 100% snow coverage past 9,400 ft of elevation.
The trail from Tenaya Lake to Clouds Rest has 100% snow coverage and a waist to chest wade at the outlet of Tenaya Lake.
The May Lake road is open. The trail is passable, but with significant snow patches up to May Lake. The lake is still currently frozen with 90% snow coverage around the lake.
The Porcupine Creek and Yosemite Creek trails are mostly clear with minor snow patches. The Ten Lakes Basin and Ten Lakes Pass still have 100% snow coverage at this time.