Other scholars, such as Reg Ashwell, suggest that the Ktunaxa moved to the British Columbia region in the early half of the 18th century, having been harassed and pushed there from East of the Rockies by the Blackfoot. He notes that their language is isolated from that of Salish tribes common to the Pacific Coast. In addition, their traditional dress, many of their customs (such as their use of teepee-style portable dwellings), and their traditional religion have more in common with Plains peoples than with the Coastal Salish.