Glacier Peak (also known as Dakobed, and in the Sauk-Suiattle dialect of the Lushootseed language Takobia [pronounced: Tda-ko-buh-ba]) is the most isolated of the five major stratovolcanoes of the Cascades in Washington. Located in the Glacier Peak Wilderness in Mount Baker–Snoqualmie National Forest, this volcano is visible from the west on Whidbey Island and other location in northern Washington and southwest British Columbia.

Glacier Peak at 10,525 feet, is the fourth tallest peak in Washington state, and not as much is known about it compared to other volcanoes in the area. Local Native Americans have recognized Glacier Peak and other Washington volcanoes in their histories and stories. When American explorers reached the region, they learned basic information about surrounding landforms, but did not initially understand that Glacier Peak was a volcano.

Glacier Peak is located just 70 miles northeast of Seattle and the most prominent peak between Mount Rainier to the south and Mount Baker to the north. Also, Glacier Peak is one of the most active volcanoes in Washington.

Washington and California are the only states in the lower 48 to experience a major volcanic eruption in the past 150 years.