Mount Lassen Topo Map

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Lassen Peak, this southernmost of the Cascade volcanoes, is a minor mountain compared with the glaciated giants farther north. Its only worthwhile route is a trail leading to its summit. Mount Lassen is the significant plug-dome remnant of a former 11,000-foot stratovolcano known as Mount Tehama (or Brokeoff Volcano). Mount Tehama collapsed and was nearly erased by ice-age glaciers, but Lassen Peak, a dacite dome, extruded itself from Tehama's remains some 11,000 years ago. In May 1914, Lassen awoke, and a year later began spilling lava, snow and mud across its slopes. On May 22, 1915, the mountain erupted violently, shooting hot gasses and ash into the stratosphere. A simultaneous lateral blast and nuee ardente (hot pyroclastic flow) devastated the northwestern part of the present-day park. This eruption, and the presence of fumaroles and 200° F mud pots nearby, signal the mountain is far from dormant. Mount Lassen, the "largest plug dome in the world," is the centerpiece of one of California's less-crowded national parks, and is located in northeastern California about 180 miles north of Sacramento.
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Mineral, California

Get Mount Lassen Topo maps on One of California's best walks, Mount Lassen is located near Mineral, CA. Trails' printable online topo maps offer shaded and un-shaded reliefs, and aerial photos too! Use topographic map functionality to find elevation, print high resolution maps, save a PNG, or just learn the topography around Mount Lassen. You can also get free latitude and longitude coordinates from the topographical map and set your GPS. Subscribers with access to our maps can download or print any topo, and cover more terrain when you map your Mount Lassen route ahead of time.