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which welled up and solidified inside softer rock which has since eroded away. Every plug, with the exception of just two, formed in a nearly straight line.
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welled up underneath a layer of softer rock and solidified. The softer overlying rock has since eroded away, leaving a distinct rugged shape.
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are a chain of twenty-three, although typically only nine are included, volcanic mountains and hills in western
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The peaks in order from Morro Bay to San Luis Obispo, including their height, a sortable table.
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Chain of volcanic mountains and hills in San Luis Obispo County, California, United States
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The Nine
Sisters, being less accessible to human intrusions, support a wide variety of
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The peaks were created more than 20 million years ago during the
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748:San Luis Obispo County, California geography stubs
411:Their volcanic origin makes them of significant
723:Landforms of San Luis Obispo County, California
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534:. Sierra Club San Luis Obispo. Archived from
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532:"The Nine Sisters of San Luis Obispo County"
504:"The Nine Sisters of San Luis Obispo County"
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484:United States Department of the Interior
449:. Eight of the Nine Sisters are visible.
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127:16.6 mi (26.7 km) WNW–ESE
408:flora, and of birds and other fauna.
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388:. About 20 to 25 million years ago,
475:Geographic Names Information System
671:. You can help Knowledge (XXG) by
665:San Luis Obispo County, California
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415:interest. They are popular with
380:The Nine Sisters are a chain of
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480:United States Geological Survey
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728:Volcanic plugs of California
258:at 1,559 feet (475 m).
738:San Luis Obispo, California
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384:composed predominantly of
103:35.3024744°N 120.6973949°W
75:475 m (1,558 ft)
49:as viewed from Laguna Lake
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447:Montaña de Oro State Park
135:3.9 mi (6.3 km)
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406:California oak woodlands
250:Two of the plugs are in
108:35.3024744; -120.6973949
743:Volcanoes of California
506:. Santa Lucia Chapter,
667:-related article is a
209:San Luis Obispo County
617:Cerro San Luis Obispo
355:Cerro San Luis Obispo
445:Panorama taken from
252:Morro Bay State Park
215:. They run between
213:Southern California
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55:Highest point
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237:Neogene Period
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470:"Bishop Peak"
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718:Nine Sisters
673:expanding it
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586:Nine Sisters
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540:. Retrieved
536:the original
516:. Retrieved
512:the original
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487:. Retrieved
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359:1,292 (394)
349:1,559 (475)
339:1,257 (383)
335:Chumash Peak
329:1,306 (398)
319:1,404 (428)
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201:Nine Sisters
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187:Type of rock
43:Chumash Peak
22:Nine Sisters
597:Bishop Peak
508:Sierra Club
345:Bishop Peak
256:Bishop Peak
169:Age of rock
106: /
94:120°41′51″W
81:Coordinates
64:Bishop Peak
47:Bishop Peak
712:Categories
637:Morro Rock
632:Islay Hill
602:Black Hill
542:2009-06-25
518:2017-01-11
489:2009-06-23
456:References
413:geological
369:775 (236)
365:Islay Hill
309:911 (278)
299:665 (203)
295:Black Hill
289:576 (176)
285:Morro Rock
205:the Morros
157:California
119:Dimensions
91:35°18′09″N
27:Los Morros
733:Morro Bay
227:Geography
217:Morro Bay
177:to Early
175:Oligocene
145:Countries
140:Geography
71:Elevation
427:Panorama
396:Features
376:Geology
235:of the
179:Miocene
163:Geology
386:dacite
278:ft (m)
275:Height
124:Length
45:, and
663:This
390:magma
272:Name
262:Peaks
245:magma
239:, as
153:State
132:Width
669:stub
419:and
404:and
219:and
199:The
60:Peak
243:of
203:or
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181:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
