1970 Map of Wiseman A-1

About this map

The Trans-Alaska Pipeline is documented here during its critical construction phase in the mid-1970s, carving a path through the Brooks Range foothills. The landscape is dominated by the massive drainage systems of the Middle Fork Koyukuk River and the South Fork Koyukuk River, which converge amid a complex network of marshes and gravel bars. The presence of Tramway Bar and various remote cabins along the water suggest the area's history of river-based travel and subsistence. High-altitude landmarks like Cathedral Mountain and Twelvemile Mountain flank the river valleys, while established routes such as the Winter Trail and Sitkum Pass indicate the seasonal movement patterns required in this subarctic environment before the pipeline's infrastructure began to transform the region's accessibility.