Question: Which Glacier is named after Philemon Beecher Van Trump, who was the first to ascend Mount Rainer in 1870?

Context paragraphs:
Van Trump Glacier: The Van Trump Glacier is actually a scattering of glaciers and snowfields located on the southern flank of Mount Rainier in Washington.  Named after P. B. Van Trump, who was part of an early ascent of Mount Rainier, the glacier covers 0.2 sqmi and contains 500 million ft (14 million m) of ice.  The glacier is located between the Wilson Glacier to the east and the Kautz Glacier to the west.  The elevation of the scattering ranges from 7000 ft at the lower end to 9800 ft on the upper reaches of the glacier.  Meltwater from the glacier drains into the Nisqually River.

Van Trump Falls: Van Trump Falls is a waterfall on Van Trump Creek in Pierce County, Washington.  The falls are located a short distance downstream from the mouth of Falls Creek.

Philemon Beecher: Philemon Beecher (March 19, 1776 – November 30, 1839) was an attorney and legislator who was a member of the United States House of Representatives from Ohio.

Van Trump Creek: Van Trump Creek, also called Van Trump Falls Creek or the Van Trump Fork of the Nisqually River, is a creek in Pierce County, Washington.  It is a tributary of the Nisqually River, joining the river just above the mouth of the Paradise River.  The creek is known for having several well known waterfalls along its course.

Kautz Glacier: The Kautz Glacier is a narrow glacier on the southern flank of Mount Rainier in Washington.  Named for August Kautz, who is sometimes credited for the first ascent of Mount Rainier, covers 1.8 sqmi and contains 7.8 billion ft (221 million m) of ice.  Upper Kautz Glacier extends south from the summit ice cap to Kautz Ice Cliff at about 11700 ft .  Immediately west of the main ice cliff, the glacier continues down Kautz Chute which terminates in another ice cliff just above the lower Kautz Glacier at 10800 ft .  Usually reached by a short descent from Camp Hazard at 11300 ft on Wapowety Cleaver, climbers following the Kautz Glacier climbing route ascend this chute to the upper glacier.

Lilian Gibbs: Lilian Suzette Gibbs (1870–1925) was a British botanist who worked for the British Museum in London.  She was the first woman and the first botanist to ascend Mount Kinabalu in February 1910.  Gibbs collected many plants new to science, several of which are named in her honour (e.g. "Racemobambos gibbsiae" or Miss Gibbs' Bamboo).

Tingri (town): Gangga (or "Tingri" according to name of region) (Tibetan: སྒང་དགའ་ , Wylie: sgang dga', Chinese: 岗嘎镇 ; Pinyin: gǎnggā zhèn) is a town in southern Tibet.  It is in Tingri County, Shigatse Prefecture with a population of around 523.  It is often used as a base by mountain climbers preparing to ascend Mount Everest or Cho Oyu.  Tingri Shelkar (Dring ri Shel dkar) is a small town approximately 60 km north-west of Mount Everest and just over 50 km from the Nepali border in the Tibet Autonomous Region of China.  It is at an altitude of about 4,300 metres (approx. 14,107 feet).  The old Shekar Dorje "Dzong", or fort, is above the new town and used to enclose Shekar Chode, a Gelug monastery which was completely destroyed but is being restored.  It is known for its spectacular views of Mount Everest, Mount Lhotse, Mount Makalu, and Cho Oyu, which comprise four of the six highest mountains in the world.

Arlene Blum: Arlene Blum (born March 1, 1945) is an American mountaineer, writer, and environmental health scientist.  She is best known for leading an all-woman ascent of Annapurna (I), a climb that was also the first successful American ascent.  She was also a deputy leader of the first all-woman ascent of Mount Denali and the first American woman to attempt to ascend Mount Everest.

P. B. Van Trump: Philemon Beecher Van Trump (1839–1916), also known as P. B. Van Trump, was an American pioneering mountaineer and writer who lived in the state of Washington.  He is best known for the first ascent of Mount Rainier in 1870.

Hazard Stevens: Hazard Stevens (June 9, 1842 – October 11, 1918) was an American military officer, mountaineer, politician and writer.  He received the Medal of Honor for his service in the Union army during the American Civil War at the Battle of Fort Huger.  Stevens and Philemon Beecher Van Trump made the first documented successful climb of Mount Rainier on August 17, 1870.

Supporting paragraphs: Van Trump Glacier P. B. Van Trump
Answer: Van Trump Glacier