Black Butte (Siskiyou County, California)

Black Butte is a cluster of overlapping dacite lava domes in a butte,[2] a satellite cone of Mount Shasta.[5] It is located directly adjacent to the northbound lanes of 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. Black Butte Summit marks the divide between the Klamath and Upper Sacramento river basins. 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]

This article is about the lava dome near Mount Shasta in California. For other uses, see Black Butte.
Black Butte
Black Butte, looking north from Interstate 5
Highest point
Elevation6,334 ft (1,931 m)  NAVD 88[1]
Coordinates41°21′59″N 122°20′53″W [1]
Geography
Parent rangeCascades
Topo mapUSGS City of Mount Shasta
Geology
Age of rockHolocene[2]
Mountain typeLava dome[2]
Volcanic arcCascade Volcanic Arc[3]
Last eruptionAbout 9,500 years ago[2]
Climbing
Easiest routeTrail[4]
Sunset over Black Butte
Black Butte seen with I-5 near the city of Mount Shasta

A United States Forest Service fire lookout tower was built on the summit in the early 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-long (4.0 km) trail leads to the summit from a trailhead accessible by gravel 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

References
  1. "Black Butte". NGS data sheet. U.S. National Geodetic Survey. Retrieved 2009-08-06.
  2. 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. Retrieved 2021-01-29.
  3. "Shasta". Global Volcanism Program. Smithsonian Institution. 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. Retrieved 2009-12-14.
  7. "Shasta-Trinity National Forest: Black Butte Trail". USDA Forest Service.

Further reading
  • English, Jane; Bonnie Eddy, eds. (2004). Mount Shasta's Black Butte. Earth Heart. ISBN 0-934747-09-1.
  • Harris, Stephen L. (2005). Fire Mountains of the West: The Cascade and Mono Lake Volcanoes (3rd ed.). Mountain Press Publishing Company. ISBN 0-87842-511-X.
  • Selters, Andy; MIchael Zanger (2006). The Mt. Shasta Book (3rd ed.). Wilderness Press. ISBN 0-89997-404-X.
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