2018 Map of Bradfield Canal A-3 NW

About this map

The Unuk River valley dominates this remote Alaskan landscape within the Tongass National Forest. Flowing through the southern reaches of the Coast Mountains, the river system creates a complex network of glacial meltwater and seasonal drainage, evidenced by features like Sawmill Slough and Lake Creek. The topography is defined by extreme elevation changes, rising sharply from the riverbanks to the high peaks and glacial valleys characteristic of the Ketchikan Gateway region. This 2018 survey captures the precise hydrologic state of the basin, including the narrow passage at First Canyon. The map reveals a wilderness largely devoid of permanent human infrastructure, where the natural movement of water and ice remains the primary force shaping the terrain.