Nabesna Glacier

Nabesna Glacier
The Nabesna Glacier, with Mount Blackburn at right; Atna Peaks is the twin summit left of center
Nabesna Glacier
Type	Valley glacier
Location	Valdez-Cordova Census Area, Alaska, U.S.
Coordinates	61°56′00″N 143°05′26″W / 61.93333°N 143.09056°W / 61.93333; -143.09056
Length	53 mi (85 km)
Terminus	Nabesna River

Nabesna Glacier is a glacier in the U.S. state of Alaska. Fed by deep snowfall in the Wrangell Mountains, the 53 mile (85 km) long ^[1] Nabesna is the longest valley glacier in North America^[2] and the world's longest interior valley glacier.^[3]

The glacier flows from an extensive icefield which covers the northern flanks of 14,163 feet (4,317 m) Mount Wrangell, a large shield volcano. It heads initially east past other volcanic peaks including Mount Blackburn and Atna Peaks and then turns north to its terminus near 3,000 ft (900 m) elevation, about 15 mi (24 km) south of the old mining settlement of Nabesna at the end of the Nabesna Road. The vast expanse and length of the Nabesna is fed by approximately 40 tributary glaciers. Melting ice at its terminus forms the Nabesna River, which flows northward through Tetlin National Wildlife Refuge and into the Tanana River.