Tumble Buttes is a volcanic field in northern California, consisting of several cinder cones that had been last active about 15,000 years ago. A well-known feature is Devils Rock Garden, a blocky lava flow which extends south of the volcano.
Ethiopia and the Danakil: Ethiopia is a very diverse and beautiful country. Thanks to our numerous expeditions to Erta Ale and Dallol and beyond, we have an extensive collection of images showing the volcano's lava lake, the desert, the colorful hot springs of Dallol, the vast salt lakes, camel caravans and more.
Etna's steam rings: A collection of fantastic vortex rings ("smoke rings") we observed recently on Etna.
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