2019 Map of Ruby D-5 SE

About this map

The Yukon River dominates this portion of the Alaska interior, carving a massive channel that separates the upland terrain of the north from the low-lying wetlands and sloughs to the south. This 2019 survey documents the complex hydrology of the river's flood plain, where the main current is diverted by Ninemile Island and the meandering Ninemile Slough. South of the river, the landscape dissolves into a network of braided streams and marshland, fed by the winding courses of Big Creek and Deer Creek. The absence of roads or permanent settlements underscores the isolation of the Yukon-Koyukuk Census Area, where the only named land features are the waterways themselves, such as McAfee Cr, which drains the northern ridges. This map is essential for understanding the seasonal shifts of the river and the intricate water routes that define movement through this subarctic wilderness.