| Pinnacle Glacier | |
| Type: | Mountain glacier |
| Location: | Mount Adams, Yakima and Skamania Counties, Washington, USA |
| Map: | USA Washington#USA |
| Label Position: | right |
| Map Size: | 225 |
| Coordinates: | 46.2069°N -121.5286°W |
| Coordinates Ref: | [1] |
| Area: | 1.41sqkm in 2006 |
| Length: | 1.2miles |
| Terminus: | Talus |
| Status: | Retreating |
Pinnacle Glacier is located on the west slopes of Mount Adams a stratovolcano in Gifford Pinchot National Forest in the U.S. state of Washington.[2] The glacier descends from approximately 10000feet to a terminus near 7200feet.[2] Pinnacle Glacier lost 7 percent of its surface area between 1904 and 2006.[3]
Pinnacle Glacier was named by Harry Fielding Reid during his survey of Mount Adams' glaciers with C. E. Rusk in 1901.[4]