@alan it's impressive, but woefully incomplete IMHO - I can think of at least five different dialects just along the I-5 corridor alone, from Chicano English and the modified Valleyspeak (which I mentally call the "skater's dialect") of Humboldt County and the Emerald Triangle to the Portland dialect's fronted vowels and the flat, country radio-informed pseudo-twang of lumber town natives. It's silly to paint everything west of Denver as one huge blob of homogeneity with a few small enclaves!
@doctorLURK Yeah, I totally agree, all of The West needs way more detail.