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.

Most notably, the park features examples of each of the four main types of volcanoes. Its namesake feature, the 10,457-foot ...

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 ...

As the centerpiece of the park, Lassen Peak is the largest plug dome volcano in the world and is part of one of the most unique volcanic areas on the planet. Please note that this information may ...

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 ...