1955 Map of Utukok River D-3

About this map

The Arctic landscape of the North Slope appears as a mosaic of tundra and complex waterways in the mid-1950s. This territory, entirely contained within the former Naval Petroleum Reserve No. 4, reflects a mid-century era of remote resource exploration and military logistics. The presence of the Navy Camp (Abandoned) and the Kaolak (Test Well) point to the specialized activities of the Department of the Navy and the Bureau of Land Management during this period. Navigation across this permafrost terrain was primarily conducted via a Winter Trail that weaves between the Natvakrak Lakes and the braided courses of the Ivisaruk River and Kaolak River. These trails represent essential seasonal transport routes in an era before permanent road infrastructure reached this far north.