Nisqually Glacier

Nisqually Glacier is an ice formation that descends the southwestern side of Mount Rainier, covering significant portions of the mountain with thick layers of compacted snow and ice. Its surface features deep crevasses and varying shades of blue that change throughout the year as the ice shifts and weathers.

The glacier reached its maximum size around the 1850s, when ice extended well below where the current bridge crosses it. Since then it has continuously retreated as temperatures have risen over the decades.

Scientists have maintained continuous monitoring of this glacier since 1918, gathering data about ice movement rates and environmental changes through systematic observations.

The glacier can be viewed from the Nisqually Vista Trail near Paradise, which has multiple stopping points for observing the ice from different angles. Clear weather offers the best views, and the trail is open year-round though snow may limit winter access.

Scientists have continuously monitored this glacier since 1918, gathering the longest available records of ice movement and climate impacts in North America. This long-term data collection allows researchers to observe clear patterns in how the ice has changed over more than a century.

Location: Washington

GPS coordinates: 46.83470,-121.74600

Latest update: December 11, 2025 11:08