Bison Brewery's Cave Painting source?

[Dylan McNamee]

Does anyone know where the original "Transmitting Power To Mankind"
cave painting used in the Bison Brewery logo is? Is it published
in any book? It's got to be one of the coolest cave paintings
I've seen, but haven't been able to track it down.

I asked someone when they first opened, and they said it was
somewhere in Canada -- but that wasn't enough to help me in my
quest.

thanks,
dylan