1955 Map of Utukok River A-4

About this map

Archimedes Ridge dominates the northern landscape of this arctic survey, which captures a wilderness environment within the Naval Petroleum Reserve No. 4. This 1955 photogrammetric mapping reflects the era when the Utukok River and its surrounding drainage basins were primarily viewed through the lens of federal resource management and geological potential. The terrain is characterized by intricate drainage patterns and significant elevation shifts, providing a clear record of the watershed's morphology before modern environmental shifts. As part of a larger mapping effort by the Army Map Service and the U.S. Geological Survey, this sheet documents a region devoid of roads or permanent structures, highlighting the isolation and untouched character of the North Slope at mid-century.