1958 Map of Medfra A-1

A central cluster of unnamed swamps surrounds Dennis Creek and Dennis Lake, illustrating the difficult terrain of the Slow Fork area before modern development. Notable landmarks such as the summits at Tonzona and Gypsy provide navigational anchors in a territory primarily defined by its riparian systems, including Pingston Creek. The map reflects a moment of primary topographic documentation in the Yukon-Koyukuk region, focused on the natural hydrology and relief of the Kateel River Meridian.