2023 Map of Anchorage A-5 SW

About this map

The Twentymile River winds through the southwestern corner of this landscape, carving a path through high alpine elevations within the Chugach National Forest. This modern 2023 survey by the U.S. Geological Survey details a largely undeveloped portion of the Anchorage municipality, where the terrain is defined by steep vertical gradients and the headwaters of glacial drainage systems. The map depicts a rugged wilderness area where the township boundaries of t12n r3e, t12n r4e, t11n r3e, and t11n r4e meet. It is a vital document for understanding the contemporary topography and hydrography of south-central Alaska, recording the precise path of the river and the complex contouring of the surrounding peaks before they descend toward the Turnagain Arm.