2017-07-08-15-00-13.jpg View of Stanislaus Peak from Sonora PeakVorschaubilderSonora Peak via St Mary's Pass and PCTView of Stanislaus Peak from Sonora PeakVorschaubilderSonora Peak via St Mary's Pass and PCTView of Stanislaus Peak from Sonora PeakVorschaubilderSonora Peak via St Mary's Pass and PCTView of Stanislaus Peak from Sonora PeakVorschaubilderSonora Peak via St Mary's Pass and PCTView of Stanislaus Peak from Sonora PeakVorschaubilderSonora Peak via St Mary's Pass and PCT
These are rock formatons made 150,000 years ago after basalt lava flows cooled down slowly, forming columns with regular geometric shapes (mostly hexagons. Their diameter varies from 10 to 40 cm.
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