Tag Archives: caldera

Yellowstone: where did all the ash go?

Another mark of eruptions at Yellowstone: thick layers of ash stretching across most of the continental US. Continue reading

Categories: outcrops, volcanoes

Geology on an epic scale: the Yellowstone caldera

To those with even a little geological knowledge, the view that presents itself as you drive into Yellowstone National Park through the South Entrance may not be quite what you expect. The park encompasses the giant caldera of a hotspot-fuelled … Continue reading

Categories: outcrops, photos, volcanoes