1960 Map of Atlin B-8

About this map

The international border between British Columbia and Alaska dominates this high-altitude survey, illustrating the complex geography of the northern Tongass National Forest. Mapped using aerial photography from 1948, the terrain is defined by an Indefinite Boundary where glaciers and steep relief challenged the precision of early terrestrial surveys. Prominent high points along the Canada-United States line include Snow Top and Boundary Peak 106, which serve as critical markers for the International Boundary Commission. The lack of roads or established settlements on this sheet highlights the wilderness state of the region during the mid-20th century, focused entirely on the cartography of the frontier peaks such as Boundary Peak 108.