That rubble is where China abandoned Chengdu when I had a samauri and he had a warrior defending it. I have a samauri SE of that mountain to the SE of the immortal stack. Depending on what he has defending that city, I might have it this coming turn too.
I'm fine with picking up and going directly after Lugdunum. Might be prudent, but I figured that some of them might even be able to walk over there once Ebor... is taken.