| 词条 | Black Butte (Siskiyou County, California) |
| 释义 |
| name = Black Butte | photo = Black Butte 8-4-2007.jpg | photo_caption = Black Butte from I-5 | elevation_ft = 6334 | elevation_ref = {{NAVD88}}[1] | prominence_ft = | location = Siskiyou County, California, U.S. | range = Cascades | coordinates = {{coord|41.36634515|N|122.347982333|W|type:mountain_region:US-CA_scale:100000_source:NGS|format=dms|display=inline,title}} | range_coordinates = | coordinates_ref = [1] | topo = USGS City of Mount Shasta | type = Lava dome[3] | age = Holocene[3] | volcanic_arc = Cascade Volcanic Arc[2] | last_eruption = About 9,500 years ago[3] | easiest_route = Trail[3] }}Black Butte is a cluster of overlapping dacite lava domes in a butte,[4] a parasitic 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 {{convert|3912|ft|m|0|abbr=on}} 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.[4] 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 {{convert|2.5|mi|km|adj=mid|-long|1}} 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 {{convert|70|mi|km|0}} to the north in Oregon.[7] See also
References1. ^1 {{cite ngs |id=MX1040 |designation=Black Butte |accessdate=2009-08-06}} 2. ^{{cite gvp |vn=323010 |name=Shasta |accessdate=2009-01-05}} 3. ^ {{cite book | last = Selters | first = Andy | author2 = Michael Zanger | title = Mt. Shasta Book: Guide to Hiking, Climbing, Skiing & Exploring the Mountain & Surrounding Area | edition = 3rd | publisher = Wilderness Press | year = 2006 | location = | page = 42 | url = https://books.google.com/books?id=_u1rdIRSBtcC&pg=PA42&lpg=PA42&dq=black+butte+shasta | isbn = 978-0-89997-404-0 }} 4. ^1 2 3 4 {{cite journal | author = Miller, C. Dan | title = Potential Hazards from Future Eruptions in the Vicinity of Mount Shasta Volcano, Northern California: USGS Bulletin 1503 | publisher = United States Geological Survey | year = 1980 | url = https://pubs.er.usgs.gov/usgspubs/b/b1503 | archiveurl = https://web.archive.org/web/20070503140345/http://pubs.er.usgs.gov/usgspubs/b/b1503 | archivedate = May 3, 2007 }} 5. ^{{cite book |editor-last=Wood |editor-first=Charles A. |editor2=Jürgen Kienle | title = Volcanoes of North America | publisher = Cambridge University Press | year = 1990 | isbn = 0-521-43811-X | pages = 214–216}} 6. ^{{cite summitpost |id=151230 |name=Black Butte (CA) |accessdate=2009-12-14}} 7. ^ {{cite web | title = Shasta-Trinity National Forest: Black Butte Trail | url = http://fs.usda.gov/wps/portal/fsinternet/!ut/p/c4/04_SB8K8xLLM9MSSzPy8xBz9CP0os3gDfxMDT8MwRydLA1cj72BTJw8jAwjQL8h2VAQAzHJMsQ!!/?ss=110514&navtype=BROWSEBYSUBJECT&cid=null&navid=110340000000000&pnavid=110000000000000&position=BROWSEBYSUBJECT&recid=6569&actid=64&ttype=recarea&pname=Shasta-Trinity%20National%20Forest%20-%20Black%20Butte%20Trail | accessdate = | publisher = USDA Forest Service }} Further reading{{refbegin}}
External links
11 : Volcanoes of Siskiyou County, California|Cascade Volcanoes|Lava domes|Mount Shasta|Subduction volcanoes|Buttes of California|Volcanism of California|Fire lookout towers in California|Shasta-Trinity National Forest|Landforms of Siskiyou County, California|Volcanoes of California |
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