The Noatak Wilderness is a wilderness area in Alaska, United States. It is part of the Noatak National Preserve. Together with neighboring Gates of the Arctic Wilderness, Noatak National Preserve, more than 6.5 million acres (2,600,000 ha), protects almost the entirety of the largest untouched river basin in America, that of the Noatak River. All of the preserve, except for about 700,000 acres (280,000 ha) east of the village of Noatak, has been designated Wilderness. The wilderness is the fourth-largest in the United States, following the Wrangell-Saint Elias Wilderness, the Mollie Beattie Wilderness, and the Gates of the Arctic Wilderness.