Flett Glacier, Mount Rainier National Park

Flett Glacier refers to two glaciers on the northwestern flank of Mount Rainier in the U.S. state of Washington. The glaciers lie on a subsidiary peak of Rainier, the 8,364 feet Observation Rock. There are two sections of glacial ice, an eastern lobe at about 7,600 ft to 7,300 ft in elevation, a smaller western lobe at about 7,200 ft in elevation. Meltwater from the glacier flows into the Puyallup River. ()