ðə sˈoːɹs ʌvðə tˈiːsnˈɑː ɪz loʊkˈeɪɾᵻd klˈoʊs tə ðə dɹˈeɪnɪdʒ dᵻvˈaɪd bᵻtwˌiːn nˈɛvə ænd vˈɑːlɡə kˈæspiən sˈiː dɹˈeɪnɪdʒ bˈeɪsənz, ænd tˈiːsnˈɑː jˈuːzd təbi ɐn ɪmpˈoːɹtənt tɹˈeɪd ɹˈaʊt ɪnðə mˈɪdəl ˈeɪdʒᵻz.
The source of the Tsna is located close to the drainage divide between Neva and Volga (Caspian Sea) drainage basins, and Tsna used to be an important trade route in the Middle Ages.