Tag Archives: quartz

The Colorado River in the Grand Canyon – Miles 109 to 115

109 Mile Rapid follows closely after Shinumo Rapid. Evidence of more faulting and Supergroup rocks are seen there on river right. At the end of this straight stretch is Hakatai Canyon, on river right at Mile 110.9. The Tapeats Sandstone … Continue reading

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The Colorado River in the Grand Canyon – Shinumo Amphitheater

Shinumo Amphitheater has many attractions. Numerous faults occur along the river in this area, and as is the case with faults in the Canyon generally, they expose rocks of the Grand Canyon Supergroup. In the prior post, we saw, at … Continue reading

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