title: Emmons Glacier
context: 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.
question: What is the largest glacier on Mount Rainier?
answers: Emmons Glacier