1. Photo-interpretation map of surficial deposits and landforms of the Nogahabara Sand Dunes and part of the Koyukuk lowland, Alaska [cartographic material] Yale Public content 1984. 2002-06-01T04:00:00Z. 2023-08-09T03:01:27Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Alaska and Koyukuk River Valley.