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Cascade Range Volcanoes
-- Graphic by: Lyn Topinka, 1996

[Map,20K,InlineGIF]
Major West Coast Volcanoes - Washington, Oregon, and California

[Map,27K,InlineGIF]
Potentially Active Volcanoes of the Western United States
-- Modified from: Brantley, 1994, Volcanoes of the United States: USGS General Interest Publication

[Graphic,70K,InlineGIF]
Cascades Eruptions During the Past 4000 Years

[Map,65K,InlineGIF]
Areas subject to potential hazards from future eruptions in California.
-- Modified from: Miller, 1989, USGS Bulletin 1847

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Northern California National Parks and Monuments

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California-Oregon border area, with Mount Shasta, Medicine Lake, and Lava Beds National Monument
-- Modified from: National Park Service, 1998

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Lava Beds National Monument, Medicine Lake Caldera, and Vicinity
-- Modified from: Donnelly-Nolan, 1981, USGS Circular 838, and Dzurisin et.al., 1991, JGR, v.96, no.B10

[Map,40K,InlineGIF]
Medicine Lake Volcano and Mount Shasta Area -- Location map showing the Medicine Lake volcano - Mount Shasta area of the southern Cascade Range, northern California. Pale green pattern indicates extent of lavas of Medicine Lake volcano. Heavy lines are faults, with bar and ball on downthrown side (Gay and Aune [1958] and air photograph interpretation). Blue line represents the 1954-1989 leveling route. Contour interval is 1000 feet (305 m).
-- Modified from: Dzurisin, et.al., 1991, IN: Journal of Geophysical Research, v.96, no.B10.

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