Ibn Ezra on Leviticus 1:11

על ירך המזבח. מחוץ וכן ירכתי צפון כי רבים טעו ואמרו שמגדל ציון היה בתוך ירושלים: ON THE SIDE OF THE ALTAR. On the outside.⁸¹In other words, yerakh which literally means side of, at times can mean beyond the side. Similarly [Even mount Zion ], the uttermost part (yarkete) of the north⁸²The northern part of Jerusalem. The verse literally reads, Even mount Zion, the side of the north. (Ps. 48:3). For many err and say that the tower of Zion⁸³Which was located on Mount Zion. See Ps. 48:13. was in the midst of Jerusalem.⁸⁴The side means on the outside, next to.