1958 Map of Big Delta C-4

About this map

The Salcha River dominates this interior Alaska landscape, weaving a complex drainage pattern through the Big Delta region. Photogrammetric methods from the early 1950s, updated with 1970s aerial observations, reveal a wilderness shaped by river systems and remote outposts like Caribou. Human presence is marked by isolated Cabins and a network of Tractor Trails that cross the high ground between watersheds. The map provides a detailed view of the terrain before modern infrastructure, where travel relied on these rugged trails and small clearings such as the Landing Strip along Butte Creek. In the north, the headwaters of the S Fk Chena River and Caribou Creek illustrate the radial drainage typical of this subarctic environment. The topography is defined by the steep valleys of No Grub Creek, Deep Creek, and Pasco Creek, offering a glimpse into the logistical challenges of surveying and navigating the Alaskan interior during the mid-century.