415:, they are forced upward by the peaks of the Cascade Range, causing them to drop their moisture in the form of rain or snowfall onto the Cascades. As a result, the west side of the North Cascades experiences high precipitation, especially during the winter months in the form of snowfall. Due to its temperate climate and proximity to the Pacific Ocean, areas west of the Cascade Crest very rarely experience temperatures below 0 °F (−18 °C) or above 80 °F (27 °C). 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. Because of
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period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris. The U-shaped cross section of the river valleys is a result of recent glaciation.
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324:. Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to 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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danger. The months July through
September offer the most favorable weather for viewing or climbing this peak.
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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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is a 7,258-foot (2,212-metre) mountain summit located in the
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Cascade Alpine Guide, Vol. 3, Rainy Pass to Fraser River
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with craggy peaks, granite spires, ridges, and deep
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16:Mountain in Washington state, United States
609:The Natural History of Puget Sound Country
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581:United States Department of the Interior
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653:Mountains of Whatcom County, Washington
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300:six miles to the south. Precipitation
308:via Three Fools Creek and Dry Creek.
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668:North Cascades of Washington (state)
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572:Geographic Names Information System
191:Spratt Mountain (the United States)
407:, and travel northeast toward the
391:Spratt Mountain is located in the
331:Spratt Mountain from the northwest
282:Okanogan–Wenatchee National Forest
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611:. University of Washington Press.
284:. Spratt Mountain is part of the
454:Geology of the Pacific Northwest
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648:Mountains of Washington (state)
577:United States Geological Survey
449:Geography of the North Cascades
304:from this mountain drains into
631:Spratt Mountain aerial photo:
161:Show map of Washington (state)
72:Bear Skull Mountain (7,330 ft)
1:
673:North American 2000 m summits
543:"Spratt Mountain - 7,258' WA"
479:"Spratt Mountain, Washington"
296:four miles to the north, and
276:, at the western edge of the
194:Show map of the United States
367:about 50 million years ago.
52:7,258 ft (2,212 m)
607:Kruckeberg, Arthur (1991).
82:1.87 mi (3.01 km)
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411:. As fronts approach the
349:volcanic igneous activity
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395:climate zone of western
110:48.858919°N 120.948596°W
62:778 ft (237 m)
357:continental lithosphere
33:Northwest aspect, from
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158:Location in Washington
115:48.858919; -120.948596
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341:North American Plate
292:which also includes
278:Pasayten Wilderness
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625:Weather forecast:
516:Mountaineers Books
417:maritime influence
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288:, a subset of the
42:Highest point
567:"Spratt Mountain"
525:978-1-59485-136-0
409:Cascade Mountains
403:originate in the
393:marine west coast
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514:(3rd ed.).
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339:Epoch. With the
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413:North Cascades
401:weather fronts
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347:, episodes of
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290:North Cascades
286:Hozameen Range
266:Whatcom County
262:North Cascades
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231:North Cascades
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584:. Retrieved
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363:created the
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221:Parent range
372:Pleistocene
370:During the
294:Skagit Peak
113: /
101:120°56′55″W
88:Coordinates
68:Parent peak
642:Categories
586:2020-07-12
552:2020-07-12
460:References
270:Washington
98:48°51′32″N
58:Prominence
421:avalanche
306:Ross Lake
126:Geography
78:Isolation
48:Elevation
510:(2008).
427:See also
381:faulting
361:terranes
242:Topo map
205:Location
399:. Most
387:Climate
359:called
353:oceanic
312:Geology
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377:Uplift
337:Eocene
302:runoff
633:PBase
264:, in
520:ISBN
379:and
355:and
247:USGS
268:of
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
