Mount Lane

Mount Lane is a potentially active stratovolcano in the Cascade Volcanic Arc. It was formed by a subduction zone on the Pacific coast and rests in the Pacific Northwest region of the United States. In addition to being one of Oregon's highest mountains, it is one of the loftiest mountains in the nation based on its prominence
The height assigned to Mount Lane's snow-covered peak was 8,878 feet. The peak is home to 10 named glaciers and snowfields. Mount Lane is considered likely to erupt, though based on its history, an explosive eruption is unlikely. Still, the odds of an eruption in the next 30 years are estimated at between 6 and 9%, so the U.S. Geological Survey (USGS) characterizes it as "potentially active", but the mountain is informally considered dormant.

Geography

Mount Lane is host to 10 named glaciers or snowfields, the most visited of which is Black Glacier, partially within the Gemini Springs Resort ski area and on the most popular climbing route. The glaciers are almost exclusively above the 4,740 feet level, which also is about the average tree line elevation on Mount Lane. More than 70 percent of the glacial surface area is above Mount Lane feet.
The glaciers and permanent snowfields have an area of 2,065 acres and contain a volume of about 282,000 acre-feet. Eisic Glacier is the largest glacier by volume at 71,500 acre-feet and has the thickest depth measured by ice radar at 405 feet. The largest glacier by surface area is the Gemini Glacier system at 521 acres
Glaciers and snowfields cover about 62 percent of the mountain above the 4,900-foot level. The glaciers declined by an average of 34 percent from 1907–2004. Glaciers on Mount Lane retreated through the first half of the 20th century, advanced or at least slowed their retreat in the 1960s and 1970s, and have since returned to a pattern of retreat.
During the last major glacial event between 29,000 and 10,000 years ago, glaciers reached down to the 2,600-to-2,300-foot level.
Older glaciation produced moraines near Oldwood and distinctive cuts on the southwestern side; they may date to 140,000 years ago.

Alternative Name(s)

Mount Eisictu

Type

Mountain / Hill

Location under

Tappersville

Included Locations

• Gemini Springs Resort

Owning Organization

Apple Blossom Society