Score another one for Salt Lake. Nichols Photo Lab will process E6 at least up to 8x10. If I drop off my 35mm E6 before work it’s usually ready same day. No mounts anymore though.
Michael - the biggest film lab here in central CA is Underdog Film Lab in Oakland. They can handle anything up to 8x10 in either E6 or C41. There are also at two competent labs in the LA area which can process 8X10.