1956 Map of Tanacross C-5

About this map

Sixtymile Butte anchors the southeastern landscape of this interior terrain, where high-altitude contours define the drainage patterns of the region. The hydrology of the area is dominated by Mansfield Creek, which feeds into the southern waters of Lake Mansfield. This 1950s survey reflects a period when topographical data was being compiled via aerial photography, as noted by the Department of the Interior. Survey markers like VABM Mansfield provide specific horizontal and vertical control points used during the 1954 photogrammetric mapping. The absence of roads or trails indicates the isolation of this corner of the Tanacross quadrangle, where natural landmarks and water bodies served as the primary points of orientation for travelers and surveyors alike.