Numbers 21:15

21:15 and the slope of the valleys ¹ 

that extends to the dwelling of Ar, ² 

and falls off at the border of Moab.”

Numbers 35:3

35:3 Thus they will have towns in which to live, and their grazing lands will be for their cattle, for their possessions, and for all their animals.

[21:15]  ¹ tc There are many variations in this text, but the MT reading of something like “the descent of the torrents/valleys” is preferable, since it is describing the topography.

[21:15]  ² sn The place is unknown; it is apparently an important city in the region.