althisfan
Banned
Given that what is called that Oregon Country/Columbia District was claimed by Spain (which Mexico would inherit that claim), Russia, and Great Britain, I don't see an American Indian nation forming. One of those nations is going to occupy. Most likely Mexico south of the Columbia River and Britain north. British area becomes Canadian. For all the "Americans treat natives so bad pushing them out and Manifest Destiny to the Pacific Ocean", Canada did the same thing. And to be clear- Chinook jargon (or wawa) is a pidgin or creole of Chinook with English and is the language the Chinook used to speak with the English and Metis traders from the East. It started around the Columbia River in Oregon and Washington.You could probably swing something with Coast First Nations in the Columbia District/Oregon Country if you end up with a United States that remains constrained to the east. Certainly you could get a Coast First Nations-flavoured country out there, at least - the French and British fur traders and early settlers in the area were much more receptive to Indian culture and language than later American settlers, and many British officials in the area spoke chinuk wawa fluently - in fact many white settlers spoke it at home in preference to English, and it was widely used in court testimony, newspapers and everyday conversation. By 1875, more than 100,000 people spoke it. But there was a huge influx of English-speaking settlers after a certain point (the railroad was a big factor), which moved the wawa-speaking group north into British Columbia and effectively led to the sunset of the wawa as the trade language, along with factors like residential schools. (Elements of it still survive today, mind, like the terms "potlatch" and "muckity-muck.")
Have an east-coast-oriented America and give it some time for the existing group of settlers to intermarry more heavily with the locals, and you'd end up with a smaller country with a dialect of English heavily laced with terms from the wawa and probably a large population of Métis-type people who speak it.
This is one of those ideas I'd love to do as a TL but don't have the gumption to pull the trigger on, incidentally.