Smithsonian Report, 1963. — Shetler 



PLATE 2 



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1. Rubble slope with only scattered clumps of vegetation on the alpine ridge pictured 



in plate 1. 



2. Boulder field high on north slope of Uyukak Mountain, J, 500 feet, overlooking the Uppei 

 Noatak River Valley in the vicinity of Lake Omelaktavik, Alaska. This area is wholly 

 within the Arctic Tundra Zone in the western Brooks Range, South Slope. 



