ðə ɹˈiːdʒən wʌz bˈoːɹdɚd baɪ ðɪ ɐtlˈæntɪk ˈoʊʃən tə ðə nˈɔːɹθ ænd baɪ ðə ɹˈiːdʒən ʌv keɪˈuːiəwˈɑːədˌɪɡhə ɔnðɪ ˈʌðɚ θɹˈiː sˈaɪdz.
The region was bordered by the Atlantic Ocean to the north and by the region of Chaouia-Ouardigha on the other three sides.