ðə dɹˈeɪnɪdʒ bˈeɪsən ʌvðə tˈiːsnˈɑː ɪŋklˈuːdz ðə wˈɛstɚn pˈɑːɹt ʌv vˌɪʃnɪvəlˈɑːtski dˈɪstɹɪkt, ðə sˈʌðɚn pˈɑːɹt ʌv fɪɹˈɑːvski dˈɪstɹɪkt, ænd ðə nɔːɹθwˈɛstɚn pˈɑːɹt ʌv kˌʌvʃɪnˈɑːvski dˈɪstɹɪkt, æz wˈɛl æz mˈaɪnɚɹ ˈɛɹiəz ɪnðɪ ˈiːst ʌv ˌɑːstɐʃkˈɑːvski dˈɪstɹɪkt.
The drainage basin of the Tsna includes the western part of Vyshnevolotsky District, the southern part of Firovsky District, and the northwestern part of Kuvshinovsky District, as well as minor areas in the east of Ostashkovsky District.