1929 Map of Three Sisters

About this map

Three Fingered Jack and Mt Washington anchor this high-elevation survey, which details the volcanic landscape and early mountain infrastructure of the Oregon Cascades during the late 1920s. The map captures a transitional era for backcountry access, documenting the intersection of primitive trails like the Skyline Trail with emerging automobile routes such as the Santiam Highway and McKenzie Highway. The distribution of seasonal settlements, including Trout Creek Cow Camp and Pole Creek Cow Camp, illustrates the historical reliance on these uplands for summer grazing.