Geotripper

News and views from the geologic realm

Showing posts with label vernal swale. Show all posts

Showing posts with label vernal swale. Show all posts

Sunday, April 19, 2015

Where the Rivers are "Upside-Down": A Hike to the Stanislaus Table Mountain

Around 10 million years ago, a lava flow surged from a volcano near present-day Sonora Pass in the Sierra Nevada. Composed of latite, but ...

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About Me

Garry Hayes: I am a teacher of geology at Modesto Junior College and former president of the National Association of Geoscience Teachers, Far Western Section. I have led field trips all over the western United States, and a few excursions overseas, but my homebase is the Sierra Nevada, the Great Valley, and the Coast Ranges of California.

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