2019 Map of Ruby D-1 SE

About this map

Little Mud River winds through this interior Alaskan wilderness, forming the central geographic feature of a landscape defined by its subtle drainage patterns and seasonal wetlands. Surveyed in the early twenty-first century, the map details a region where the meandering river system creates a complex network of oxbows and marshlands across the Yukon-Koyukuk Census Area. The lack of roads or permanent settlements within these townships emphasizes the isolation of the territory, which remains dominated by the natural shifts of the waterway. This documentation by the U.S. Geological Survey provides a precise topographical record of the river's course as it navigates the low-lying terrain, offering a specialized look at the hydrology of the Alaskan interior before any modern development or infrastructure altered the corridor.