1956 Map of Ikpikpuk River

About this map

Naval Petroleum Reserve No 4 dominates this 1950s survey of the North Slope, capturing a landscape defined by the search for oil and the vast drainage networks of the Ikpikpuk River and Colville River. The map records early industrial exploration through numerous petroleum probes, such as the East Qumalik Test Well and Wolf Creek Test Wells, connected by a network of tractor trails that represent the only infrastructure across the tundra. Notable geological and navigational landmarks include Knifeblade Ridge and Little Supreme Bluff, while the southern reaches follow the braided path of the Awuna River through the foothills. The presence of several winter landing areas and specific test sites like the Square Lake Test Well highlights the seasonal and isolated nature of exploration in this Arctic territory before the discovery of Prudhoe Bay further east.