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period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured and shaped the landscape. A small glacial remnant lies on the south slope of Dorado Needle, whereas the northern slope maintains the extensive
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danger. During winter months, weather is usually cloudy, but, due to high pressure systems over the
Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.
440:. Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to the various climate differences.
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in combination with glaciation have been the dominant processes which have created the tall peaks and deep valleys of the North
Cascades area.
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Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008.
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The history of the formation of the
Cascade Mountains dates back millions of years ago to the late
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The North
Cascades features some of the most rugged topography in the
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originating in the
Pacific Ocean travel northeast toward the
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Dorado Needle (left) and
Eldorado Peak seen from near
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is an 8,440+ ft (2,570+ m) mountain summit located in
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July 1940 by Lloyd
Anderson, Karl Boyer, Tom Gorton,
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383:from the mountain drains into tributaries of the
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459:persisted. In addition, small fragments of the
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355:and 1.33 mi (2.14 km) southeast of
16:Mountain in Washington (state), United States
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436:with craggy peaks, spires, ridges, and deep
719:The Natural History of Puget Sound Country
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351:state. The peak lies 0.73 miles north of
675:United States Department of the Interior
399:climate zone of western North America.
156:Location of Dorado Needle in Washington
774:Mountains of Skagit County, Washington
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371:of the peak was made in July 1940 by
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666:Geographic Names Information System
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721:. University of Washington Press.
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503:Climbing Routes on Dorado Needle
189:Dorado Needle (the United States)
604:Geology of the Pacific Northwest
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395:Dorado Needle is located in the
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764:Mountains of Washington (state)
671:United States Geological Survey
599:Geography of the North Cascades
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159:Show map of Washington (state)
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784:North American 2000 m summits
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192:Show map of the United States
769:North Cascades National Park
748:North Cascades National Park
507:Dorado Needle SW Buttress -
475:about 50 million years ago.
341:North Cascades National Park
235:North Cascades National Park
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717:Kruckeberg, Arthur (1991).
631:"Dorado Needle, Washington"
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570:The summit of Dorado Needle
514:Dorado Needle East Ridge -
359:. It can be seen from the
33:Dorado Needle (right) from
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41:and Marble Needle to left)
732:Dorado Needle SW Buttress
520:Dorado Needle NW Ridge -
457:volcanic igneous activity
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67:800 ft (240 m)
543:Dorado Needle in winter
465:continental lithosphere
361:North Cascades Highway
108:48.54972°N 121.13861°W
750:National Park Service
449:North American Plate
113:48.54972; -121.13861
57:8,440+ ft (2,570+ m)
231:Protected area
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39:Early Morning Spire
485:McAllister Glacier
417:maritime influence
47:Highest point
405:Cascade Mountains
397:marine west coast
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80:8,868 ft (2703 m)
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473:North Cascades
455:, episodes of
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409:North Cascades
401:Weather fronts
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357:Perdition Peak
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345:Skagit County
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320:Easiest route
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183:Dorado Needle
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22:Dorado Needle
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678:. Retrieved
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471:created the
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385:Skagit River
379:and glacier
369:first ascent
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309:First ascent
292:Type of rock
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243:Parent range
650:ListsofJohn
480:Pleistocene
478:During the
365:Marblemount
297:Orthogneiss
280:Age of rock
111: /
99:121°08′19″W
86:Coordinates
73:Parent peak
758:Categories
680:2019-04-28
610:References
349:Washington
285:Cretaceous
215:Washington
96:48°32′59″N
63:Prominence
557:The Triad
524:3 pitches
511:9 pitches
421:avalanche
381:meltwater
124:Geography
53:Elevation
577:See also
493:faulting
469:terranes
363:west of
326:Climbing
303:Climbing
260:Topo map
529:Gallery
467:called
461:oceanic
428:Geology
391:Climate
329:YDS 5.5
274:Geology
203:Country
489:Uplift
445:Eocene
377:runoff
225:Skagit
221:County
211:State
491:and
463:and
265:USGS
347:of
343:in
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689:^
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618:^
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37:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
