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Gneiss on Ryan Mountain

Joshua Tree National Park

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ADDED: Jul 13, 2005 02:54VIEWS: 3,483
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Glacier LiliesGoing-to-the-Sun Mountain - Logan Pass >
Gneiss on Ryan Mountain
This large block of gneiss is near the intersection of the Ryan Mountain Trail and the Sheep Pass Campground access trail. The flanks of Ryan Mountain are covered with talus and colluvium (rocky soil) derived from ancient metamorphic rocks and the granitic plutons that intruded them.


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