query: What is the largest glacier on Mount Rainier?
passage: Emmons Glacier
Emmons Glacier is on the northeast flank of Mount Rainier, in Washington.[2] At 4.3sqmi (11km2), it has the largest surface area of any glacier in the contiguous United States.[3] The glacier was named after the geologist Samuel Franklin Emmons after his involvement in a survey of Mount Rainier in 1870.
passage: Sarvant Glacier
The Sarvant Glacier is a glacier located on the northern slopes of the Cowlitz Chimneys in Washington. Named for Henry M. Sarvant, who mapped Mount Rainier in 1894, the glacier starts at an elevation of about and descends northward down to . There are several patches of permanent ice and snow that lie to the east and west of the glacier. These range in elevation from about to . The patches of ice and snow to the west are labeled Sarvant Glaciers.