Geologic setting, petrology, and age of Pliocene to Holocene volcanoes of the Stepovak Bay area, western Alaska Peninsula: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1988

1989 ◽  
Keyword(s):  
Geological Survey ◽  
Alaska Peninsula ◽  
Bay Area ◽  
Geologic Setting ◽  
The U.S

Historical Retreat of Alpine Glaciers in the Ahklun Mountains, Western Alaska

2015 ◽  
Vol 6 (1) ◽  
pp. 255-263
Author(s):  
Patrick Walsh ◽  
Darrell Kaufman ◽  
Tess McDaniel ◽  
Jai Chowdhry Beeman
Keyword(s):  
Average Rate ◽  
Aerial Imagery ◽  
Geological Survey ◽  
Aerial Photos ◽  
Alaska Peninsula ◽  
Mountain Glaciers ◽  
Alpine Glaciers ◽  
Current Century ◽  
The U.S ◽  
Southwestern Alaska

Abstract The Ahklun Mountains support the only extant glaciers in southwestern Alaska north of the Alaska Peninsula. The glaciers were originally mapped by the U.S. Geological Survey using photogrammetry methods based on 1972–1973 aerial photos. We surveyed for presence or absence of the glaciers by fixed-wing aircraft in 2006. Of 109 glaciers originally mapped, 10 (9%) had disappeared. Using aerial imagery of a subset of 76 glaciers at three time steps between 1957 and 2009, we determined the average rate of areal loss was 45% over 52 y. At this rate, it is likely that all Ahklun Mountain glaciers will be extinguished by the end of the current century.

Geological Confirmation of Native Traditions, Yakutat, Alaska

1958 ◽  
Vol 23 (4) ◽  
pp. 434-434 ◽  
Author(s):  
Frederica de Laguna
Keyword(s):  
Geological Survey ◽  
Open File ◽  
Bay Area ◽  
Surficial Deposits ◽  
The U.S

An open file report of the U.S. Geological Survey, “Glacial Features and Surficial Deposits of the Malaspina District, Alaska,” by George Plafker and Don J. Miller, 1957, not only indicates some of the periods when the Icy Bay-Yakutat Bay area was open to habitation, but seems to confirm native traditions of great antiquity. I am indebted to Don Miller for bringing this report to my attention.

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