| 词条 | Blanca Peak |
| 释义 |
| name = Blanca Peak | other_name = {{spell-nv|Sisnaajiní}} {{Nv icon}} | photo = MtBlancaEast.jpg | photo_caption = View of Blanca Peak (left of center) from Mt. Lindsey | elevation_system = NAVD88 | elevation = 14,351 ft (4374 m) | elevation_ref = [1] | prominence = 5326 ft (1623 m) | prominence_ref = [1] | isolation = 103.4 mi (166.4 km) | isolation_ref = [1] | listing = {{unbulleted list |North America highest peaks 33rd |US highest major peaks 19th |US most prominent peaks 103rd |US most isolated peaks 49th |Colorado highest major peaks 4th |Colorado fourteeners 4th |Colorado county high points 3rd }} | location = High point of both Alamosa and Costilla counties, Colorado, US[1] | range = Highest summit of the Sangre de Cristo Mountains, Sangre de Cristo Range, and Sierra Blanca Massif[1] | map = Colorado | coordinates = {{coord|37.5772269|N|105.4858447|W|type:mountain_region:US-CO_scale:100000|format=dms|display=inline,title}} | range_coordinates = | coordinates_ref =[2] | topo = USGS 7.5' topographic map Blanca Peak, Colorado[2] | first_ascent = August 14, 1874 by the Wheeler Survey (first recorded) | easiest_route = Northwest Face/North Ridge: Scramble (Class 2/easy Class 3) }}{{Infobox mountain | name = Blanca Peak Tripoint | photo = | photo_caption = | elevation_ft = 14326 | elevation_ref =[3][4] | listing = Colorado county high points | location = Tripoint of Alamosa, Costilla, and Huerfano counties, Colorado, US High point of Huerfano County.[4] | parent_peak = Blanca Peak[4] | range_coordinates = | coordinates = {{coord|37.577824|-105.48541|region:US-CO|format=dms|display=inline}} | coordinates_ref =[4] }}Blanca Peak is the fourth highest summit of the Rocky Mountains of North America and the U.S. state of Colorado. The ultra-prominent {{convert|14351|ft|m|0|adj=on}} peak is the highest summit of the Sierra Blanca Massif, the Sangre de Cristo Range, and the Sangre de Cristo Mountains. The fourteener is located {{convert|15.5|km|order=flip}} north by east (bearing 9°) of the Town of Blanca, on the drainage divide separating Rio Grande National Forest and Alamosa County from the Sangre de Cristo Land Grant and Costilla County. The summit is the highest point of both counties and the entire drainage basin of the Rio Grande. Below the steep North Face of Blanca Peak two live Glaciers once developed, until extinction sometime after 1903. North & South Blanca Glaciers were located at 37° 35N.,longitude 105° 28W. Blanca Peak is higher than any point in the United States east of its longitude.[5][1][2] The Blanca Peak Tripoint of Alamosa, Costilla, and Huerfano counties is located on the same drainage divide approximately {{convert|251|ft|0}} northeast by north (bearing 30°) of the Blanca Peak summit at the boundary of the San Isabel National Forest. The Blanca Peak Tripoint is the highest point in Huerfano County.[4] GeographyBlanca Peak is located at the southern end of the Sangre de Cristo Range, a subrange of the more extensive Sangre de Cristo Mountains, and is the highest peak in both ranges. It lies approximately {{convert|20|mi|km}} east-northeast of the town of Alamosa. Approximately {{convert|15|mi|km}} to the north-northwest is Great Sand Dunes National Park and Preserve. Blanca Peak is notable not only for its absolute height, but also for its great local relief and dominant position at the end of the range, rising high above the San Luis Valley to the west. For example, it rises nearly {{convert|7000|ft|m}} over the edge of the San Luis Valley in only {{convert|6|mi|km}}.[6] Blanca is also the third most topographically prominent peak in Colorado; it is separated from the higher peaks in the Sawatch Range by relatively low Poncha Pass at {{convert|9019|ft|m}}. Blanca Peak heads up three major creeks. Holbrook Creek is on the west, flowing from a basin including Crater Lake, Blue Lakes, and Como Lake. An extremely challenging four wheel drive road accesses Como Lake {{convert|11750|ft|m}}, and provides the most common access to Blanca Peak. Most vehicles stop at an elevation of between {{convert|8000|ft|m}} and {{convert|10000|ft|m}} on this road. The Como Lake Road is a designated Alamosa County Road and runs to the edge of the Sangre de Cristo Wilderness just short of Blue Lakes. The Como Lake Road is rated as the most challenging 4WD road in Colorado. The Huerfano River flows from the north side of Blanca Peak. A road, starting out as a two-wheel drive road, then becoming a four-wheel drive road (less challenging than the Como Lake Road), provides access to the technical climbing on the North Face of Blanca Peak. Blanca Creek drains Blanca Basin under the south slopes of the peak, and Little Ute Creek descends from the Winchell Lakes on the southeast side. However these are not used to access the peak due to private property. Three other fourteeners are nearby: Mount Lindsey to the east, Ellingwood Point to the north and Little Bear Peak to the southwest. Ellingwood Point is connected to Blanca by a short, high ridge, and is often climbed in conjunction with Blanca. Little Bear also has a high connecting ridge to Blanca, but it is a technical traverse, only recommended for highly experienced parties.[7] GeologyThe granite that makes up the Blanca massif is pre-Cambrian in age, dated at approximately 1.8 billion years old. The major part of the Wet Mountains to the east and the Front Range to the northeast are also pre-Cambrian, also about 1.8 billion years old. In contrast, the Sangre de Cristo Range to the north and the Culebra Range to the south are Permian rock between 250 and 300 million years old. HistoryBlanca Peak is known to the Navajo people as the Sacred Mountain of the East: {{spell-nv|Sisnaajiní}}[8] (or Tsisnaasjiní[9]), the Dawn or White Shell Mountain. The mountain is considered to be the eastern boundary of the Dinetah, the traditional Navajo homeland. It is associated with the color white, and is said to be covered in daylight and dawn and fastened to the ground with lightning. It is gendered male.[8] Summitpost notes that "the first recorded ascent of Blanca by the Wheeler Survey was recorded on August 14, 1874, but to their surprise they found evidence of a stone structure possibly built by Ute Indians or wandering Spaniards."[10] Historical names
See also{{portal|North America|United States|Colorado|Mountains}}
References1. ^1 2 3 4 5 {{cite web|url=http://www.peakbagger.com/peak.aspx?pid=5921|title=Blanca Peak, Colorado|publisher=Peakbagger.com|accessdate=January 2, 2016}} 2. ^1 2 3 {{cite gnis|id=192735|name=Blanca Peak|accessdate=October 19, 2014}} 3. ^The elevation of the Blanca Peak Tripoint includes an adjustment of +1.755 m (+5.76 ft) from NGVD 29 to NAVD 88. 4. ^1 2 3 4 {{cite peakbagger|pid=5920|title=Blanca Peak-Northeast Slope, Colorado|accessdate=November 14, 2014}} 5. ^The elevation of Blanca Peak includes an adjustment of +1.754 m (+5.75 ft) from NGVD 29 to NAVD 88. 6. ^Blanca Peak on TopoQuest 7. ^Louis W. Dawson II, Dawson's Guide to Colorado's Fourteeners, Volume 2, Blue Clover Press, 1996, {{ISBN|0-9628867-2-6}} 8. ^1 Robert S. McPherson, Sacred Land, Sacred View: Navajo perceptions of the Four Corners Region, Brigham Young University, {{ISBN|1-56085-008-6}}. 9. ^Lapahie.com {{webarchive |url=https://web.archive.org/web/20060814180907/http://www.lapahie.com/Sacred_Mts.cfm |date=August 14, 2006 }} 10. ^{{cite summitpost |id=150450 |name=Blanca Peak on Summitpost |accessdate=2011-05-07}} External links{{sister project links}}
11 : Mountains of Colorado|Mountains of Alamosa County, Colorado|Mountains of Costilla County, Colorado|Mountains of Huerfano County, Colorado|Rio Grande National Forest|San Isabel National Forest|Sangre de Cristo Mountains|Fourteeners of Colorado|North American 4000 m summits|Sacred mountains|Religious places of the indigenous peoples of North America |
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