1958 Map of Lime Hills D-3

About this map

Big River and its tributary, the Lyman Fork, define the primary drainage systems through this high-altitude Alaskan landscape. Surveyed in the late 1950s using aerial photography, the map reveals a stark alpine environment where topographical relief is the dominant feature. Numerous crevasses are explicitly marked across the high ice fields and glaciers, signaling the active glacial movement and hazardous terrain characteristic of the region. The lack of any established roads, trails, or settlements at the time of the 1958 field annotation underscores the extreme isolation of this portion of the Lime Hills. This document serves as a specialized record of glacial geomorphology, capturing the positions of ice flows and drainage patterns before later twentieth-century climatic shifts.