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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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291:, 0.6 mi (0.97 km) to the northeast. The Chopping Block can be seen from the North Cascades National Park Newhalem visitor center, weather permitting. Precipitation
371:. 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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on maps, but hardly anyone calls it by that name. The nearest higher peak is
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The North
Cascades features some of the most rugged topography in the
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is a 6,819-foot (2,078-metre) mountain summit located in the
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429:Left to right: The Chopping Block, The Barrier,
390:persisted. In addition, small fragments of the
16:Mountain in Washington (state), United States
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367:with craggy peaks, spires, ridges, and deep
135:Location of The Chopping Block in Washington
552:The Natural History of Puget Sound Country
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498:United States Department of the Interior
623:Mountains of Whatcom County, Washington
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168:The Chopping Block (the United States)
311:The Chopping Block is located in the
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489:Geographic Names Information System
283:. The mountain is officially named
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554:. University of Washington Press.
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466:"The Chopping Block, Washington"
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33:The Chopping Block, south aspect
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613:Mountains of Washington (state)
494:United States Geological Survey
138:Show map of Washington (state)
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171:Show map of the United States
618:North Cascades National Park
591:North Cascades National Park
406:about 50 million years ago.
277:North Cascades National Park
186:North Cascades National Park
49:6,819 ft (2,078 m)
550:Kruckeberg, Arthur (1991).
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295:from the peak drains into
190:Whatcom County, Washington
388:volcanic igneous activity
331:. As fronts approach the
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315:climate zone of western
59:579 ft (176 m)
396:continental lithosphere
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87:48.75500°N 121.30806°W
593:National Park Service
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299:, a tributary of the
380:North American Plate
92:48.75500; -121.30806
343:onto the Cascades (
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586:The Chopping Block
584:Weather forecast:
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349:maritime influence
269:The Chopping Block
162:The Chopping Block
129:The Chopping Block
39:Highest point
22:The Chopping Block
329:Cascade Mountains
323:originate in the
313:marine west coast
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501:. Retrieved
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301:Skagit River
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273:Picket Range
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233:Type of rock
204:Picket Range
198:Parent range
411:Pleistocene
409:During the
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78:121°18′29″W
65:Coordinates
607:Categories
503:2019-04-26
445:References
281:Washington
75:48°45′18″N
55:Prominence
353:avalanche
103:Geography
45:Elevation
420:faulting
400:terranes
355:danger.
341:snowfall
258:Climbing
245:Climbing
215:Topo map
182:Location
398:called
392:oceanic
359:Geology
319:. Most
307:Climate
275:within
237:Skagit
227:Geology
416:Uplift
376:Eocene
293:runoff
239:Gneiss
598:PBase
261:YDS 5
418:and
394:and
337:rain
220:USGS
339:or
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
