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Happy Isles

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Coordinates:37°43′54″N119°33′31″W / 37.73171°N 119.558694°W /37.73171; -119.558694

From Wikipedia, the free encyclopedia

Small group of isles in the Merced River, Yosemite National Park

This article is about the small group of isles in the Merced River , US. For the earthly paradise inhabited by the heroes of Greek mythology, seeFortunate Isles.

Happy Isles
Geography
The Merced River in Happy Isles
Topographic map of Happy Isles area
Coordinates	37°43′54″N119°33′31″W / 37.73171°N 119.558694°W /37.73171; -119.558694

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Happy Isles is a group of small isles in theMerced River inYosemite National Park,California, USA. They are located at the easternmost end of theYosemite Valley floor. This scenic spot is the starting point for theMist Trail, and is also the northern trailhead for theJohn Muir Trail.^[1] Happy Isles is also the trailhead for popular hiking destinations along the Mist Trail (includingVernal Falls andNevada Falls) andHalf Dome.

Happy Isles is located where the slope of the Merced River changes from the much steeper upper main stem to the essentially flat Valley floor. At Happy Isles, the rivergradient is approximately 2%. The gradient of the Merced River at Happy Isles is steeper than in the Valley floor, and the channel of the river is cut intoerosion-resistantgranitic boulders andtalus materials, compared to channel deposits of sands and gravel present on the Valley floor. The steeper gradient and composition ofstreambed materials together impedemeandering patterns from developing in this area.^[2]

The area near Happy Islessustained damage in 1996 during a rockslide. A number of signposts near the Isles are dedicated to the rockfall.

References

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^"John Muir and Pacific Crest Trails".NPS.gov. Retrieved2008-05-08.
^ This article incorporatespublic domain material fromHappy Isles Bridge Removal Project Environmental Assessment.National Park Service. Archived fromthe original on 2009-08-16. Retrieved2009-10-17.

External links

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USGS: Happy Isles Webcam

Yosemite National Park

Attractions

Valley attractions	Half Dome Yosemite Falls El Capitan Films:El Capitan,The Dawn Wall,Free Solo,To the Limit Bridalveil Fall Happy Isles Mirror Lake North Dome Vernal Fall Nevada Fall Little Yosemite Valley LeConte Lodge Bracebridge Dinner Yosemite Firefall Yosemite Valley Chapel
Hiking trails	John Muir Trail Mist Trail Panorama Trail McGurk Meadow Ostrander Lake Taft Point Sentinel Dome Alder Creek Mariposa Grove Wapama Falls Lembert Dome
Rock climbs	Fairview Dome, North Face Half Dome, Northwest Face Lost Arrow Spire Lost Arrow Spire Tip Midnight Lightning Royal Arches Route Salathé Wall (El Capitan) Steck-Salathé Route (Sentinel Rock) Separate Reality The Nose (El Capitan)