Sometimes the RNG puts settlements (and other starting constructions) in rather..... sub-optimal locations. I just conquered their neighbor, and now two-province Ashisor is about to lose the shortest war in the history of Bronze Age (EDIT: it took 17 seconds). In addition, one of their provinces has exactly two non-mountain tiles, so it's about as useful as a submarine screen door.
Bonus fact: five-province Bonechopper Tribe (just west of Ashisor) is completely split in two by mountains (quite possibly from another wonky start), so if when I attack the two eastern provinces, the three western provinces are completely unable to assist.