In which year did this American pioneering mountaineer and writer, after whom this scattering of glaciers and snowfields located on the southern flank of Mount Rainier in Washington was named, climb Mount Rainier?
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. 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. P. B. Van Trump:  He is best known for the first ascent of Mount Rainier in 1870.
i don't know