Not to pile on, but this article makes a fairly egregious history blunder, as well. Navajos (and athabascans generally) did originate in western Canada, but the

Not to pile on, but this article makes a fairly egregious history blunder, as well. Navajos (and athabascans generally) did originate in western Canada, but the Navajo and Apache people were resident in the US Southwest long before Europeans showed up. The "Long Walk" was a forced re-location from one part of New Mexico to another, and unrelated to Navajo migration from the north.