Deuteronomy 3:1

Then we turned and went up the way to Bashan,.... Which seems to have been higher than the kingdom of Sihon: this was a fine country for pasturage, for the breeding of cattle, larger and lesser, and was famous for its oaks: it is the same country which in Josephus and others goes by the name of Batanea:

and Og the king of Bashan came out against us; got his forces together, and came out from Ashteroth, the royal city where he dwelt:

he and all his people, to battle at Edrei; another city in his kingdom, about six miles from the former; see Deuteronomy 1:4.