Kootznahoo Inlet is located on the eastern shore of Chatham Strait in the U.S. state of Alaska. Comprising an area of about 15 square miles (39 km2), it is an intricate group of narrow passages, lagoons, and bays, having its entrance 3 miles (4.8 km) north of Killisnoo. Kootznahoo, which means bear fortress, is also the name given by the Tlingit to mean Admiralty. The Kootznoowoo Wilderness also of the Admiralty Island covers some of the largest reserve areas covering about 1 million acres. The island is inhabited by about 1500 brown bears, the largest number recorded anywhere on the earth.