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133:. It was the oldest and tallest of several former lava dams in the Grand Canyon. It was formed about 1.2 million years ago as lava flowed down the walls of the Grand Canyon, and temporarily stopped the flow of the
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National
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156:"K-Ar ages of Pleistocene lava dams in the Grand Canyon in Arizona"
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Grand Canyon
National Park: A Natural History Guide
154:Dalrymple, G. Brent; Hamblin, W. K. (1998-08-18).
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160:Proceedings of the National Academy of Sciences
16:Former lava dam in the Grand Canyon of Arizona
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682:List of trails in Grand Canyon National Park
51:introducing citations to additional sources
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387:Grand Canyon–Parashant National Monument
41:Relevant discussion may be found on the
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651:Powell Geographic Expedition of 1869
209:. Houghton Mifflin. pp. 34–36.
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656:1956 Grand Canyon mid-air collision
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743:Grand Canyon: The Hidden Secrets
677:Grand Canyon Backcountry Camping
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34:relies largely or entirely on a
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736:The Man Who Walked Through Time
750:Grand Canyon: A Different View
661:Grand Canyon Airlines Flight 6
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304:Grand Canyon Village, Arizona
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382:Grand Canyon Forest Reserve
62:"Prospect Dam" Arizona
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294:Grand Canyon National Park
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692:Grand Canyon Conservancy
203:Schmidt, Jeremy (1993).
513:Uinkaret volcanic field
392:Grand Canyon Supergroup
279:Black Suspension Bridge
172:10.1073/pnas.95.17.9744
730:(2017 children's book)
819:Pleistocene volcanism
756:Grand Canyon Escalade
720:A Bigger Grand Canyon
576:Little Colorado River
289:Grand Canyon Escalade
785:36.1914°N 113.0472°W
377:Grand Canyon Caverns
367:Ericameria arizonica
299:Grand Canyon Skywalk
47:improve this article
781: /
407:Sixtymile Formation
402:Nankoweap Formation
372:Esplanade Sandstone
790:36.1914; -113.0472
698:Grand Canyon Suite
581:Bright Angel Creek
501:Bright Angel Shale
342:Agave phillipsiana
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763:
705:Desert Wonderland
481:Redwall Limestone
451:Hyaloclastite Dam
422:Shinumo Quartzite
314:Marble Canyon Dam
284:Bridge Canyon Dam
166:(17): 9744–9749.
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723:(1998 painting)
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357:Cardenas Basalt
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45:. Please help
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64: –
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58:Find sources:
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36:single source
32:This article
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814:Grand Canyon
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728:Grand Canyon
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712:Grand Canyon
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564:Havasu Falls
559:Havasu Creek
523:Venus Temple
491:Temple Butte
476:Prospect Dam
475:
466:Newton Butte
436:Freya Castle
319:Maswik Lodge
265:Grand Canyon
222:September 4,
220:. Retrieved
205:
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123:Grand Canyon
117:is a former
115:Prospect Dam
114:
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788: /
776:113°02′50″W
714:(1958 film)
607:Kenton Grua
571:Kanab Creek
496:Tonto Group
471:Ochoa Point
456:Isis Temple
412:Unkar Group
397:Chuar Group
309:Kolb Studio
803:Categories
773:36°11′29″N
612:John Hance
554:Deer Creek
272:Facilities
141:References
73:newspapers
628:Havasupai
180:0027-8424
103:July 2016
43:talk page
633:Hualapai
119:lava dam
670:Related
334:Geology
127:Arizona
121:in the
87:scholar
643:Events
621:Tribes
590:People
213:
186:
178:
89:
82:
75:
68:
60:
189:21407
94:JSTOR
80:books
224:2021
211:ISBN
176:ISSN
66:news
184:PMC
168:doi
125:of
49:by
805::
182:.
174:.
164:95
162:.
158:.
137:.
129:,
257:e
250:t
243:v
226:.
192:.
170::
105:)
101:(
91:·
84:·
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39:.
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