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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 last glacial retreat in the Alpine Lakes area began about 14,000 years ago and was north of the Canada–US border by 10,000 years ago. The U-shaped
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walls spotted with over 700 mountain lakes. 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 Alpine Lakes
Wilderness area.
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Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008.
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after he left his coat on the mountain on a surveying trip in 1897, which was also the first ascent.
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The double summit
Chimney Rock centered with Overcoat Peak to right. Lower Tank Lake in foreground.
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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 Alpine Lakes
Wilderness features some of the most rugged topography in the
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cross section of the river valleys is a result of that recent glaciation.
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508:(Map). TopoQwest (United States Geological Survey Maps)
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230:July 1897 by Albert H. Sylvester and John Charlton
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580:Backpacking Washington’s Alpine Lakes Wilderness
358:persisted. In addition, small fragments of the
16:Mountain in Washington (state), United States
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604:The Natural History of Puget Sound Country
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582:. Helena, Montana: The Globe Pequot Press.
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483:United States Department of the Interior
259:is on the east slopes of Overcoat Peak.
530:. Tacoma Public Library. Archived from
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241:Mount Baker-Snoqualmie National Forest
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420:Overcoat Peak (left) and Chimney Rock
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629:Mountains of King County, Washington
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474:Geographic Names Information System
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330:with craggy peaks and ridges, deep
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239:(7,432 feet (2,265 m)) is in
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606:. University of Washington Press.
528:"Washington Place Names Database"
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274:Overcoat Peak is located in the
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624:Mountains of Washington (state)
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544:"Keyword search" on "Overcoat".
479:United States Geological Survey
138:Show map of Washington (state)
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171:Show map of the United States
168:Location in the United States
374:about 50 million years ago.
49:7,432 ft (2,265 m)
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602:Kruckeberg, Arthur (1991).
444:"Overcoat Peak, Washington"
262:Overcoat Peak was named by
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356:volcanic igneous activity
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278:climate zone of western
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364:continental lithosphere
253:Alpine Lakes Wilderness
186:King County, Washington
135:Location in Washington
87:47.51361°N 121.29167°W
505:Big Snow Mountain, WA
264:Albert Hale Sylvester
243:in the U.S. state of
578:Smoot, Jeff (2004).
348:North American Plate
92:47.51361; -121.29167
306:onto the Cascades (
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312:maritime influence
39:Highest point
292:Cascade Mountains
286:originate in the
276:marine west coast
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215:Big Snow Mountain
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536:. Retrieved
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370:created the
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249:Chimney Rock
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226:First ascent
195:Parent range
379:Pleistocene
377:During the
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78:121°17′30″W
65:Coordinates
618:Categories
427:References
245:Washington
75:47°30′49″N
55:Prominence
538:March 10,
512:March 10,
488:March 10,
453:March 10,
316:avalanche
103:Geography
45:Elevation
388:faulting
368:terranes
318:danger.
304:snowfall
220:Climbing
208:Topo map
182:Location
568:, p. 16
394:Gallery
366:called
360:oceanic
336:granite
322:Geology
282:. Most
270:Climate
566:Beckey
384:Uplift
344:Eocene
334:, and
188:, U.S.
540:2013
514:2013
490:2013
455:2013
386:and
362:and
300:rain
213:USGS
302:or
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588:^
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
