The Eel River Athabaskans include the Wailaki, Lassik, Nongatl, and Sinkyone (Sinkine) groups of Native Americans that traditionally live in present-day Mendocino, Trinity, and Humboldt counties on or near the Eel River and Van Duzen River of northwestern California. These groups speak dialects of the Wailaki language belonging to the Pacific Coast Athabaskan group of the Athapaskan language family which is prominently represented in Alaska, western Canada, and the southwestern U.S. Other related Athapaskan groups neighboring the Eel River Athapaskans included the Hupa-Whilkut-Chilula to the north, the Mattole on the coast to the west, and the Kato to the south. The Whilkut, Nongatl and Lassik were essentially annihilated during the Bald Hills War in the 1860s. Some Wailaki people are registered members of Round Valley Indian Tribes. Tribes Nongatl The Nongatl (Hupa word meaning ″Athapaskan to the south″) lived traditionally in the territory around the Van Duzen River, from its outlet on the Eel River to its headwaters near Dinsmore, California, and along Yager Creek and Larabee Creek (Elsasser 1978; Golla 2011). They had at least 35 villages. Lassik The Lassik (Las'-sik, the name of their last chief) had about 20 villages and occupied a portion of main Eel River south to Kekawaka Creek, and its east tributaries, Van Duzen River, Larabee, and Dobbyn creeks, as well the headwaters of the North Fork Eel River and Mad River. They had for neighbors toward the north the Whilkut inhabitants of the valley of Mad River and Redwood Creek; toward the east the Wintu of South Fork Trinity River; toward the south the Wailaki, from whom they were separated by Kekawaka Creek; toward the west the Sinkyone (Sinkine) on Southfork of Eel River. Their dialect resembles the Hupa in its morphology and the Wailaki in its phonology. The majority of them perished during the first few years of the occupancy of their country by white people, a bounty being placed on their heads and the traffic in children for slaves being profitable and unrestrained. A few families of them are still living in the neighborhood of their former homes. Wailaki The Wailaki (Wintun term meaning "north language.") or in their own language Kinist'ee (″the people″) lived in northwestern California, along the Eel River south of Kekawaka Creek and the North Fork Eel River in three main subdivisions: Tsennahkenne or Tsen-nah-ken-ne (Eel River Wailaki or Mainstem Eel River band); Bahneko or Bah-ne-ko keah