Boston Glacier is located in a large cirque below several mountain peaks in North Cascades National Park in the U.S. state of Washington.[2] Approximately 1 mi (1.6 km) long but nearly 3.5 mi (5.6 km) wide, it is the largest glacier in North Cascades National Park.[3] Extending in an arc from the north of Forbidden Peak, it is flanked by Boston Peak to the southwest and Buckner Mountain at its eastern margin, between which it lies below the arête known as Ripsaw Ridge. Another arête extending between Boston Peak, Sharkfin Tower, Forbidden Peak and further north separate Boston Glacier from the nearly adjoining Quien Sabe and Forbidden Glaciers. Boston Glacier has been in an overall state of retreat since the end of the Little Ice Age around the year 1850. A moderate advance occurred between 1950 and the mid-1970s; however, the retreat resumed and between 1972 and 2006 its terminus retreated 1,470 ft (450 m).[4]
^Forbidden Peak, WA (Map). TopoQwest (United States Geological Survey Maps). Retrieved October 26, 2014.
^Post, Austin; Don Richardson; Wendell V. Tangborn; F. L. Rosselot (1971). . United States Geological Survey. Archived from the original on October 18, 2012. Retrieved August 26, 2014.
^Pelto, Mauri. "North Cascade Glacier Terminus Behavior". North Cascade Glacier Climate Project. Nichols College. Retrieved October 26, 2014.
This article about a glacier in Washington is a stub. You can help Wikipedia by expanding it.
boston, glacier, located, large, cirque, below, several, mountain, peaks, north, cascades, national, park, state, washington, approximately, long, nearly, wide, largest, glacier, north, cascades, national, park, extending, from, north, forbidden, peak, flanked. Boston Glacier is located in a large cirque below several mountain peaks in North Cascades National Park in the U S state of Washington 2 Approximately 1 mi 1 6 km long but nearly 3 5 mi 5 6 km wide it is the largest glacier in North Cascades National Park 3 Extending in an arc from the north of Forbidden Peak it is flanked by Boston Peak to the southwest and Buckner Mountain at its eastern margin between which it lies below the arete known as Ripsaw Ridge Another arete extending between Boston Peak Sharkfin Tower Forbidden Peak and further north separate Boston Glacier from the nearly adjoining Quien Sabe and Forbidden Glaciers Boston Glacier has been in an overall state of retreat since the end of the Little Ice Age around the year 1850 A moderate advance occurred between 1950 and the mid 1970s however the retreat resumed and between 1972 and 2006 its terminus retreated 1 470 ft 450 m 4 Boston GlacierBoston Glacier below Forbidden PeakBoston GlacierLocation in WashingtonTypeMountain glacierLocationNorth Cascades National Park Skagit County Washington United StatesCoordinates48 30 22 N 121 02 01 W 48 50611 N 121 03361 W 48 50611 121 03361 1 Length1 mi 1 6 km TerminusIcefallStatusRetreatingSee also editList of glaciers in the United StatesReferences edit Boston Glacier Geographic Names Information System United States Geological Survey United States Department of the Interior Retrieved October 26 2014 Forbidden Peak WA Map TopoQwest United States Geological Survey Maps Retrieved October 26 2014 Post Austin Don Richardson Wendell V Tangborn F L Rosselot 1971 Inventory of Glaciers in the North Cascades Washington United States Geological Survey Archived from the original on October 18 2012 Retrieved August 26 2014 Pelto Mauri North Cascade Glacier Terminus Behavior North Cascade Glacier Climate Project Nichols College Retrieved October 26 2014 nbsp This article about a glacier in Washington is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Boston Glacier amp oldid 1181158316, wikipedia, wiki, book, books, library,
