Mount Adams, known by some Native American tribes as Pahto or Klickitat, is an active stratovolcano in the Cascade Range. Although Adams has not erupted in more than 1,000 years, it is not considered extinct. It is the second-highest mountain in Washington, after Mount Rainier.
The Mount Adams Wilderness is a 47,708-acre (19,307 ha) wilderness area in the U.S. state of Washington managed by the U.S. Forest Service. The wilderness encompasses an ecologically complex and geologically active landscape. Weather differs between the dry eastside and moist westside of the mountain. At 12,276 feet (3,742 m), Mount Adams is the second tallest mountain in Washington State and one of the tallest in the Cascade Range. The wilderness area is on the west side of the mountain and is part of the Gifford Pinchot National Forest. The east side of the mountain is part of the Yakama Nation, with the southeast side part of the Mount Adams Recreation Area, and includes Bird Creek Meadows.
Adams Glacier is situated on the northwest flank of Mount Adams, a 12,281-foot (3,743 m) stratovolcano in the U.S. state of Washington. Much of it becomes the source of Adams Creek, a tributary of the Cispus River. It is the largest glacier on Mount Adams. It flows down from the summit ice cap at over 12,000 feet (3,700 m) for over 2.5 miles (4.0 km) to a terminus near 7,000 feet (2,100 m).
Avalanche Glacier is located on the west to southwest slopes of Mount Adams a stratovolcano in the Gifford Pinchot National Forest in the U.S. state of Washington. The glacier descends from the White Salmon Glacier at 10,200 ft (3,100 m) to a terminus near 7,600 ft (2,300 m). Avalanche Glacier has been in a general state of retreat for over 100 years and lost 59 percent of its surface area between 1904 and 2006.
Crescent Glacier is located on the southeast slopes of Mount Adams in the U.S. state of Washington in Gifford Pinchot National Forest. A small subpeak of Mount Adams, named South Butte, rises nearby. Crescent Glacier is close to the Gotchen Glacier which is located just to the east. Crescent Glacier lies in a small south-facing cirque with a steep headwall. The glacier ranges in elevation from 8,400 ft (2,600 m) at the foot of the steep cliff to 7,900 ft (2,400 m) at the moraine. One arm of the glacier extends south down to 7,600 ft (2,300 m). Between 1904 and 2006, Crescent Glacier lost 6 percent of its surface area.
Gotchen Glacier is located on the south slopes of Mount Adams, a stratovolcano in the Gifford Pinchot National Forest in the U.S. state of Washington. The glacier descends from approximately 8,200 ft (2,500 m) to a terminus near 7,400 ft (2,300 m) below, where an old terminal moraine and proglacial lake exist. Gotchen Glacier has been in a general state of retreat for over 100 years and lost 78 percent of its surface area between 1904 and 2006.
Lava Glacier is located on the north slopes of Mount Adams a stratovolcano in Gifford Pinchot National Forest in the U.S. state of Washington. The glacier descends from approximately 10,000 ft (3,000 m) to a terminus near 7,800 ft (2,400 m). Lava Glacier has been in a general state of retreat for over 100 years and lost 74 percent of its surface area between 1904 and 2006.
Lyman Glacier is located on the north slopes of Mount Adams a stratovolcano in Gifford Pinchot National Forest in the U.S. state of Washington. The glacier is also within the Yakama Indian Reservation and descends from near the summit of Mount Adams at approximately 11,400 ft (3,500 m) to a terminus near 7,800 ft (2,400 m). Below 9,000 ft (2,700 m) the glacier splits into three distinct lobes. Lyman Glacier has been in a general state of retreat for over 100 years and lost 34 percent of its surface area between 1904 and 2006.
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. The glacier descends from approximately 10,000 ft (3,000 m) to a terminus near 7,200 ft (2,200 m). Pinnacle Glacier lost 7 percent of its surface area between 1904 and 2006.
White Salmon Glacier is located on Mount Adams in the U.S. state of Washington. The glacier starts southwest of the summit crater at an elevation of 11,600 ft (3,500 m). Ice flows southwest downhill until the glacier's terminus at about 9,600 ft (2,900 m) elevation. The glacier also contributes ice to the much larger Avalanche Glacier at an elevation of 10,200 ft (3,100 m). White Salmon Glacier has decreased in surface area by 86 percent between 1904 and 2006.