Pacific Northwest historians are well acquainted with the Chinook Jargon, in name if not in the ability to understand it. Mentions of and phrases of Chinook Jargon were found in nearly every piece of historical source material before 1900. Chinook Jargon is relatively unknown to the rest of the population, perhaps due to the great influx of newcomers into the influential urban areas. However, the memory of this language is not likely to fade entirely. Many words are still used and enjoyed throughout Oregon, Washington, British Columbia, the Yukon, and Alaska. Old-timers still dimly remember it, although in their youth, speaking this language was discouraged as slang. Nonetheless, it was the working language in many towns and workplaces, notably in ranching country and in canneries on the British Columbia Coast where it was necessary in the strongly multi-ethnic workforce. Place names throughout this region bear Jargon names (see List of Chinook Jargon placenames) and words are preserved in various rural industries such as logging and fishing.