King Slough is a water passage between Farm Island and Dry Island in the Stikine River Delta, about 11 miles (18 km) northwest of Wrangell, Alaska. The Stikine estuary is approximately 8 miles (13 km) wide and 16 miles (26 km) long and all of it is in the Stikine-LeConte Wilderness, a major resting and feeding area for waterfowl along the Pacific Flyway.
The river valley is relatively narrow and the surrounding mountains are steep, rugged, and contain numerous glaciers. Meltwater from these glaciers has a high silt content, giving the Stikine River a milky appearance. The river delta consists of extensive mud flats, numerous sloughs of varying widths, and large islands. The river channels are highly braided with three main navigable channels that are shallow. Historically, riverboat operators relied upon the incoming tides to pass through this area, proceeding cautiously as deckhands called out the depths.
In 2005, the State of Alaska filed an application for a recordable disclaimer of interest for the bed of the Stikine River from its mouth to the United States-Canada International Boundary, a distance of approximately 27 miles (44 km). The State also applied for lands underlying all named interconnecting sloughs including King Slough. Read more here and here. Click here to download the CoastView app and explore King Slough and the Stikine River estuary.