Long-quiet volcanoes in the Cascades region of the Pacific Northwest are still underpinned by large reservoirs of magma, new ...

On June 14, 1914, three men climbed Lassen Peak to see why a seemingly dormant volcano had started rumbling 16 days before. Now, peering into a newborn crater, they felt the ground tremble.

It appears that these magma bodies exist beneath volcanoes over their whole lifetime, not just during an active state.' ...

Lassen Volcanic National Park is worth visiting. The highlight of the park is Lassen Peak, the largest plug dome volcano in the world and the southernmost volcano in the Cascade Range. I highly ...

Most notably, the park features examples of each of the four main types of volcanoes. Its namesake feature, the 10,457-foot Lassen Peak, is one of the world's largest lava dome-type volcanoes and ...

Tucked away in far northeastern California, Lassen offers sweeping grandeur and hydrothermal ... The park's namesake peak is the one of the largest plug dome volcanoes in the world — a type of volcano ...

Lassen Peak is one of the largest plug dome volcanoes in the world, and its most recent violent eruptions from 1914 to 1917, photographed by B.F. Loomis, captured the attention of the nation. Lassen ...