יִהְיֶ֤ה מִזֶּה֙ אֶל־הַקֹּ֔דֶשׁ חֲמֵ֥שׁ מֵא֛וֹת בַּחֲמֵ֥שׁ מֵא֖וֹת מְרֻבָּ֣ע סָבִ֑יב וַחֲמִשִּׁ֣ים אַמָּ֔ה מִגְרָ֥שׁ ל֖וֹ סָבִֽיב׃
Of this there shall be for the holy place five hundred in length by five hundred in breadth, square round about; and fifty cubits for the open land round about it.
Mishnah Middot
The Temple Mount was five hundred cubits by five hundred cubits. The greater part of it was on the south; next to that on the east; next to that on the north; and the smallest part on the west. The part which was most extensive was the part most used.