Assuming that you don't count XKL machines, the
nearest operational system I
know of is in Washington state. Unless perhaps the Bootstrap Institute
(
www.bootstrap.org) is still running AUGMENT on their DECSYSTEM-20.
Where in Washington were you thinking of?
My university had one but it was sold a few years ago. I don't know where
it ended up.
I didn't realize the Bootstrap Instutute used -10 hardware! That's really
interesting. I've been meaning to ask them about playing with their soft-
ware (it's something I've been interested in).
-- Derek