There is two mount Hor in scripture:
1) The mount Hor of the land of the Edomites Num 33:37
2) The mount Hor of the north. Num 34:7,8
There is considerable difficulty in identifying this location. It has been suggested that it could represent either:
a) The northern sumits of Mt Lebanon (as illustrated) around 80km in length which creates the marked northern end of the Lebanese range, and separates Lebanon from modern Syria by the enetering of Hamath (the geographical Hamath-Tadmor fissure) and Wadi Khabir, or the great river, which marks the modern geographical boundary of Lebanon and Syria.
b) Mons Casius, known as Jebel Archus, the home of the god Baal, to the south-west of Antioch, overlooking the Orontes [Robinson (iii. 461)]
The difficulty arises from the name Hor simply meaning mountain. Mount Hor is described as the pointed marker of the north of the inheritance of the tribes in Num 34:7,8 a feature that is not mentioned in the list of inheritance of Ezek 47
The value of this reference then may not be seen in the geographical location, but within the intent of the verse. The inheritance was to granted to those “pointing out” the mount, the mountain! (Hebraism) and from mount mount you shall point out your border….” The work to point only is used 2x within these two verses Num 34:7,8 The idea is to mark or point. And although it implies the geographical features of height, it also indicates the moral lessons to be seen in the mount. The mount was the place in which Yahweh would be seen Gen 22: 14 and the place where Yahweh would bring them (the saints) in and plant them in the mountain of His inheritance, the place which He has made to dwell in, the sanctuary of the Adons, (the rulers having dominion over flesh) which Yahweh’s hands have established, and Yahweh shall reign for ever and ever Ex 15:17,18 This is the place where Yahweh seeks to dwell, first in holiness, and then in immortality Ps 15