Flett Glacier

{{Short description|Glacier in Washington, United States}}

{{Infobox glacier

| name = Flett Glacier

| photo = Flett Glacier with Echo Rock.JPG

| photo_caption = Flett Glacier viewed from Observation Rock, with Echo Rock in the distance.

| type = Mountain glacier

| location = Mount Rainier National Park, Pierce County, Washington, USA

| map = USA Washington

| label_position = right

| map_size = 225

| coordinates = {{coord|46|54|22|N|121|48|08|W|region:US-WA|format=dms|display=inline,title}}

| coordinates_ref = {{cite gnis|id=1519649|name=Flett Glacier|accessdate=2012-12-31}}

| area =

| length = {{convert|.35|mi|abbr=on}}

| thickness =

| terminus = Moraines/proglacial lake

| status = Retreating

}}

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 {{convert|8364|ft}} Observation Rock. There are two sections of glacial ice, an eastern lobe at about {{convert|7600|ft|abbr=on}} to {{convert|7300|ft|abbr=on}} in elevation, a smaller western lobe at about {{convert|7200|ft|abbr=on}} in elevation.{{Cite map|publisher=TopoQwest (United States Geological Survey Maps)|title=Mowich Lake, WA|url=http://www.topoquest.com/map.php?lat=46.90622&lon=-121.80232&datum=nad83&zoom=4|accessdate=2012-12-31}} Meltwater from the glacier flows into the Puyallup River.

Flett Glacier commemorates the botanist John B. Flett, who climbed Little Tahoma in 1895.{{Cite book|last=Majors|first=Harry M.|title=Exploring Washington|publisher=Van Winkle Publishing Co|year=1975|page=125|url=https://books.google.com/books?id=CoWrPQAACAAJ|isbn=978-0-918664-00-6}}