A Box from Bierzo

I was going to write that the last region from which I expected to receive wine-in-a-box would be Bierzo, but of course there are much more exotic places, Upper Volta being one, I will probably never get wine-in-a-box from Upper Volta, which, I'm humble enough to admit, I used to think was in Russia, until it occurred to me that what all those folk were…