Crater Lake

Crater Lake National Park is a United States National Park located in

Prospect State Scenic Viewpoint, is a state park in the U.S. state of

Hole-in-the-Ground is a large maar (explosion crater) in the Fort Rock

Fort Rock Cave is the site of the earliest evidence of human

The Lava River Cave near Bend, Oregon is part of the Newberry National

The High Desert Museum is located near Bend, Oregon, United States.

Lava Beds National Monument, located in Siskiyou and Modoc Counties,

Pluto's Cave is 50 square miles of partially collapsed lava tubes on

Mount Rainier is an active

The sea of Gallilee, also Lake of Gennesaret, Lake Kinneret or Sea of

Hallasan is a shield volcano on Jeju Island of South Korea. Hallasan

The Irazú Volcano (Spanish: Volcán Irazú) is an active volcano in Co

The Poás Volcano, in Spanish Volcán Poás, is an active st