1958 Map of Lime Hills D-2

About this map

The Terra Cotta Mountains dominate this high-altitude interior landscape, defined by a network of glacial river systems and steep alpine passes. Mapping based on 1950s aerial photography shows the glacial runoff paths of the Post River and the Hartman River as they carve through the mountain range. This mid-century survey by the Geological Survey and the Bureau of Land Management captures the area before any established roads or trails were recorded, focusing instead on the hydrological and topographical reality of the wilderness. Key drainage features like Fish Creek and Boulder Creek are documented alongside notable transit points through the high peaks, specifically Strand Pass. The map provides an essential baseline for the region’s geography during a period of active aerial surveying in the Alaskan interior.