Mishnayos Rosh Hashanah Perek 2 Mishnah 4

And from which mountains would they light the torches? They would transmit the message from the Mount of Olives in Jerusalem to Sartava, and from Sartava to Gerofina, and from Gerofina to Ḥavran, and from Ḥavran to Beit Baltin. And from Beit Baltin they would not move to light torches in any other predetermined location. Rather, the one who was appointed for this task would wave the torch back and forth and up and down, until he would see the entire Diaspora before him alight like one large bonfire, as they would light torches to continue transmitting the message from place to place all the way to the farthest reaches of the Diaspora.

וּמֵאַיִן הָיוּ מַשִּׂיאִין מַשּׂוּאוֹת, מֵהַר הַמִּשְׁחָה לְסַרְטְבָא, וּמִסַּרְטְבָא לִגְרוֹפִינָא, וּמִגְּרוֹפִינָא לְחַוְרָן, וּמֵחַוְרָן לְבֵית בִּלְתִּין, וּמִבֵּית בִּלְתִּין לֹא זָזוּ מִשָּׁם, אֶלָּא מוֹלִיךְ וּמֵבִיא וּמַעֲלֶה וּמוֹרִיד עַד שֶׁהָיָה רוֹאֶה כָל הַגּוֹלָה לְפָנָיו כִּמְדוּרַת הָאֵשׁ: