Thursday 3 July 2014

Crater Lake National Park: The Pinnacles

Just when I thought that I had seen it all!

These are The Pinnacles, in the Crater Lake National Park and they are fossil fumaroles.

They stand as tall as the Ponderosa Pines.

The fumaroles are formed when hot volcanic gases rise up through a layer of volcanic ash and the heat cements the ash into solid rock.

Erosion of the soft rock exposes these weird and wonderful forms.

Quite remarkable volcanic features




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