Black Butte (Siskiyou County, California)

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This article is about the lava dome near Mount Shasta in California. For other uses, see Black Butte.
Black Butte
Black Butte 8-4-2007.jpg
Black Butte from I-5
Elevation 6,334 ft (1,931 m) NAVD 88[1]
Location
Location Siskiyou County, California, U.S.
Range Cascades
Coordinates 41°21′59″N 122°20′53″W / 41.366345150°N 122.347982333°W / 41.366345150; -122.347982333Coordinates: 41°21′59″N 122°20′53″W / 41.366345150°N 122.347982333°W / 41.366345150; -122.347982333[1]
Topo map USGS City of Mount Shasta
Geology
Type Lava dome[2]
Age of rock Holocene[2]
Volcanic arc Cascade Volcanic Arc[3]
Last eruption About 9,500 years ago[2]
Climbing
Easiest route Trail[4]
Sunset over Black Butte
Black Butte seen from I-5 near Shasta City

Black Butte is a cluster of overlapping dacite lava domes in a butte,[2] a parasitic satellite cone of Mount Shasta.[5] It is located directly adjacent to Interstate 5 at milepost 742 between the city of Mount Shasta and Weed, California. The highway crosses a 3,912 ft (1,192 m) pass, Black Butte Summit, at the western base of the lava domes. The lava domes were extruded at the foot of the cone of Shastina following the period of its major eruptions about 9,000–10,000 years ago.[2]

A United States Forest Service fire lookout tower was built on the summit in the 1930s, but destroyed during the Columbus Day Storm of 1962. A new lookout was built in 1963 and operated until 1973. The building was moved by helicopter to a new location in 1975 and only the concrete foundation remains today. A 2.5-mile (4.0 km) long trail leads to the summit from a trailhead accessible by dirt roads off the Everitt Memorial Highway.[6] The summit boasts an outstanding view of the southwest side of Shasta and Shastina, and on clear days Mount McLoughlin is easily visible 70 miles (113 km) to the north in Oregon.[7]

See also[edit]

References[edit]

  1. ^ a b "Black Butte". NGS data sheet. U.S. National Geodetic Survey. Retrieved 2009-08-06. 
  2. ^ a b c d e Miller, C. Dan (1980). "Potential Hazards from Future Eruptions in the Vicinity of Mount Shasta Volcano, Northern California: USGS Bulletin 1503". United States Geological Survey. Archived from the original on May 3, 2007. 
  3. ^ "Shasta". Global Volcanism Program, Smithsonian Institution. http://www.volcano.si.edu/world/volcano.cfm?vnum=1203-01-. Retrieved 2009-01-05.
  4. ^ Selters, Andy; Michael Zanger (2006). Mt. Shasta Book: Guide to Hiking, Climbing, Skiing & Exploring the Mountain & Surrounding Area (3rd ed.). Wilderness Press. p. 42. ISBN 978-0-89997-404-0. 
  5. ^ Wood, Charles A.; Jürgen Kienle, eds. (1990). Volcanoes of North America. Cambridge University Press. pp. 214–216. ISBN 0-521-43811-X. 
  6. ^ "Black Butte (CA)". SummitPost.org. http://www.summitpost.org/page/151230. Retrieved 2009-12-14.
  7. ^ "Shasta-Trinity National Forest: Black Butte Trail". USDA Forest Service. 

Further reading[edit]

External links[edit]