Tri-Coastal Ride 2014

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One of the key reasons for the high quality of rock climbing in Eldorado Canyon is that the Fountain Formation here is cemented with adularia, a low-temperature potassium feldspar associated with hydrothermal fluids. This cement is not present in other exposures of the formation.

All images copyright © 2014 F.W. Vollmer and may not be used without permission.