The Klamath people are a Native American tribe of the Plateau culture area in Southern Oregon and Northern California. Today Klamath people are enrolled in the federally recognized tribes:
The Hokan language family is a hypothetical grouping of a dozen small language families spoken mainly in California, Arizona, and Baja California.
Penutian is a proposed grouping of language families that includes many Native American languages of western North America, predominantly spoken at one time in British Columbia, Washington, Oregon, and California. The existence of a Penutian stock or phylum has been the subject of debate among specialists. Even the unity of some of its component families has been disputed. Some of the problems in the comparative study of languages within the phylum are the result of their early extinction and limited documentation.
The Siletz were the southernmost of several divisions of the Tillamook people speaking a distinct dialect; the other dialect-divisions were: Salmon River on the Salmon River, Nestucca on Little Nestucca River, Nestucca River and Nestucca Bay, Tillamook Bay on the Tillamook Bay and the mouths of the Kilchis, Wilson, Trask and Tillamook rivers, and Nehalem on Nehalem River. The name "Siletz" comes from the name of the Siletz River on which they live. The origin of the name is unknown
The Kalapuya are a Native American people, which had eight independent groups speaking three mutually intelligible dialects. The Kalapuya tribes' traditional homelands were the Willamette Valley of present-day western Oregon in the United States, an area bounded by the Cascade Range to the east, the Oregon Coast Range at the west, the Columbia River at the north, to the Calapooya Mountains of the Umpqua River at the south.
The Coosan language family consists of two languages spoken along the southern Oregon coast. Both languages are now extinct.
Alsea or Alsean was two closely related speech varieties spoken along the central Oregon coast until the early 1950s. They are sometimes taken to be different languages, but it is difficult to be sure given the poor state of attestation; Mithun believes they were probably dialects of a single language.
Indigenous peoples of the Northwest Plateau, also referred to by the phrase Indigenous peoples of the Plateau, and historically called the Plateau Indians are Indigenous peoples of the Interior of British Columbia, Canada, and the non-coastal regions of the Northwestern United States.
The Takelma are a Native American people who originally lived in the Rogue Valley of interior southwestern Oregon.
Wintuan is a family of languages spoken in the Sacramento Valley of central Northern California.
Kalapuyan is a small extinct language family that was spoken in the Willamette Valley of Western Oregon, United States. It consists of three languages.
The Tsimshianic languages are a family of languages spoken in northwestern British Columbia and in Southeast Alaska on Annette Island and Ketchikan. All Tsimshianic languages are endangered, some with only around 400 speakers. Only around 2,170 people of the ethnic Tsimshian population in Canada still speak a Tsimshian language; about 50 of the 1,300 Tsimshian people living in Alaska still speak Coast Tsimshian. Tsimshianic languages are considered by most linguists to be an independent language family, with four main languages: Coast Tsimshian, Southern Tsimshian, Nisg̱a’a, and Gitksan.
The Yuki–Wappo or Yukian languages are a small language family of western California consisting of two distantly related languages, both now extinct.
Takelma is the language that was spoken by the Latgawa and Takelma peoples and the Cow Creek band of Upper Umpqua, in Oregon, USA. The language was extensively described by the German-American linguist Edward Sapir in his graduate thesis, The Takelma Language of Southwestern Oregon (1912). Sapir’s grammar together with his Takelma Texts (1909) are the main sources of information on the language. Both are based on work carried out in 1906 with language consultant Frances Johnson, who lived on to become the last surviving fluent speaker. In 1934, with her death at the age of 99, the language became extinct. An English-Takelma dictionary is currently being created on the basis of printed sources with the aim of reviving the language.
The Confederated Tribes of Siletz Indians in the United States is a federally recognized confederation of more than 27 Native American tribes and bands who once inhabited an extensive homeland of more than 20 million acres from northern California to southwest Washington and between the summit of the Cascades and the Pacific Ocean. After the Rogue River Wars, these tribes were removed to the Coast Indian Reservation, now known as the Siletz Reservation. The tribes spoke at least 11 distinct languages, including Tillamook, Shasta, Lower Chinook, Kalapuya, Takelma, Alsea-Yaquina, Siuslaw/Lower Umpqua, Coos, the Plateau Penutian languages Molala and Klickitat, and several related Oregon Athabaskan languages.
The Coast Oregon Penutian languages are a proposed family of three small languages or language clusters on the Oregon Coast that has moderate support. Although much of their similarity is demonstrably due to language contact, linguists such as Scott DeLancey believe they may be genealogically related at a greater time depth. They are part of the much more hypothetical Penutian proposal.
Upper Umpqua is an extinct Athabaskan language formerly spoken along the south fork of the Umpqua River in west-central Oregon by Upper Umpqua (Etnemitane) people in the vicinity of modern Roseburg. It has been extinct for at least seventy years and little is known about it other than it belongs to the same Oregon Athabaskan cluster of Pacific Coast Athabaskan languages as the Lower Rogue River language, Upper Rogue River language and Chetco-Tolowa.
El Vallecito is an archaeological site located in the city of La Rumorosa, in the Tecate Municipality, Baja California, Mexico.
Molala is an extinct language once spoken by the Molala people of Oregon. Currently it is included among the Plateau Penutian language family, with Klamath and Sahaptin being considered the closest related.
The Takelma–Kalapuyan languages are a proposed small language family that comprises the Kalapuyan languages and Takelma, which were spoken in the Willamette Valley and the Rogue Valley in the U.S. state of Oregon.
