Friday, January 29, 2016

Indian Rock Arch, Yosemite's only granite arch, viewed from the south looking north


This photo shows Yosemite National Park's only granite arch, called Indian Rock. It's not identfied on maps or even by the signs along the trail, that this feature is an arch. It forms through the process that erodes granite features generally, exfoliation. Sheets or plates of granite peel off through the the freeze and thaw process. Arches are rarely made of granite because the exfoliation process would have to leave the arch behind as other parts of the rock peel away. Reaching Indian Rock involves hiking three miles from the Tioga Pass Road starting at Porcupine Flat. This view of the arch is from the trail to its south looking northward during the morning. We've posted another picture of this arch in our gallery looking at it from the north looking south, with Half Dome appearing underneath the arch. We've camped near and hiked to this arch more than 5 times. This photo is 2 photos that have been merged to a proportion of 2x1.

There is another granite arch in the Sierra south of Yosemite along a route known as the Sierra Vista Scenic Byway.

Remember, it's not just a picture, it's a story!

This picture shows Bob sitting by the arch on the north side.


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