Reference for Rosh Hashanah 2:4
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:
And from where did they light the beacons? From the Mount of Olives [facing Jerusalem in the east] to Sarteva, and from Sarteva to Grofina, and from Grofina to Chavran, and from Chavran to Beth Biltin, and from Beth Biltin — they did not leave — but he moved it (the beacon) from side to side and up and down until he saw the entire exile [Bavel] (lit) before him as a bonfire. [For each one would take a torch and bring it up to his roof.]