Tag Archives: erosional surface

The Colorado River in the Grand Canyon – Tapeats Creek, Mile 133.7

Tapeats Creek! It’s a crystal-clear trout stream fed by springs that issue from below the North Rim, one of which is the spectacular Thunder River Spring which shoots out of a cave in a limestone cliff. The diabase mentioned above … Continue reading

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The Colorado River in the Grand Canyon – Blacktail Canyon, Mile 117 – 121

We tear ourselves away from Elves Chasm and drift downstream towards Blacktail Canyon, another favorite. In Stephen Aisle, at Mile 117, the Monument Fold fault intersects the river, and brings the Tapeats Sandstone to river level. Blacktail is a slot … Continue reading

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