Medicine Lake and Glass Mountain

Medicine Lake, California, with Mount Shasta on the skyline

• Medicine Lake Volcanics and Lava Beds National Monument Vicinity
  -- Geographic Setting, and Geologic and Eruptive History
  Medicine Lake Caldera, Lava Beds National Monument, and Glass Mountain Obsidian Flow
  Medicine Lake volcano is a Pleistocene and Holocene shield volcano located in northeastern California about 50 kilometers east of Mount Shasta, near the western margin of the Basin and Range tectonic province.

Volcanic eruptions on the Medicine Lake shield volcano have created an incredibly rugged landscape punctuated by cinder cones, lava flows, spatter cones, lava tube caves and pit craters. During the Modoc War of 1872-1873, the Modoc Indians used these tortuous lava flows to their advantage. Under the leadership of Captain Jack, the Modocs took refuge in "Captain Jack's Stronghold," a natural lava fortress. From this base a group of 53 fighting men and their families held off US Army forces numbering up to twenty times their strength for five months. Visitors can tour both the geologic and historic wonders of this unusual landscape.

 Visit A Volcano - Medicine Lake Volcano and Lava Beds National Monument

California Guide - Lava Beds National Monument, California …

CVO Website - Medicine Lake and Lava Beds, California

Glass Mountain Obsidian Source, California