1971 Map of Arctic C-5

About this map

The Continental Divide cuts a winding path across this section of the Brooks Range, separating the watersheds of the North Slope in a landscape defined by dramatic elevation changes. Mapped from 1970 aerial photography, the sheet records a wilderness of high peaks and glacial valleys where the Ivishak River flows toward the north and west. To the east, the Marsh Fork Canning River carves through the mountains, illustrating the complex drainage patterns at the top of the world. While the Bureau of Land Management had predetermined land lines for the area, the map indicates these locations remained unsurveyed and unmarked on the ground at the time of publication, highlighting the remote nature of this arctic interior during the early 1970s.