The Tahltan or Nahani are a First Nations people of the Athabaskan-speaking ethnolinguistic group who live in northern British Columbia around Telegraph Creek, Dease Lake, and Iskut. The Tahltan constitute the fourth division of the Nahane (People of the West). The Tahltan cultural practices and lifeways varied widely as they were often widely separated and would have to endure varying conditions depending on their locality. In Tahltan culture it was believed that some of their ancestors had knowledge that others did not from times before a great flood. Some of these ancestors used that knowledge for the good of the people, while others used it for evil and to the disadvantage of others. Raven is considered to be the protagonist hero against these evil ancestors. Tahltan social organization is founded on matriarchy and intermarriage between two main clan designations. The two main clans of Tahltan people are Tses' Kiya (pronounced Tses-kee-ya) (Crow) and Chiyone (pronounced Chee-oanah) (Wolf). These two clans are further subdivided into four parties: Kartchottee (Raven)—This family originated in the Interior toward the headwaters of the Taku River. This is the most numerous family of the tribe, also represented by the frog. Nanyiee (Wolf)—Also represented by the brown bear, the killer-whale, and the shark. This family originated near the headwaters of Taku River, moved towards the ocean and settling among the Stikine Tlingit; and then ascended the Stikine River and became a family of the Tahltan. Talarkoteen (Wolf)—Originating near Peace River in the Interior, these peoples followed Liard River to Dease Lake and then crossed to the Tuya. Tuckclarwaydee (Wolf)—Also represented by the brown bear, the eagle, and the killer-whale. This family is credited as being the founders of the Tahltan tribe, originating in the interior near the headwaters of Nags river. Contemporary Tahltan society constitutes itself as the Tahltan Nation, which comprises the membership and governments of the Tahltan First Nation and Iskut First Nation.