Deuteronomy 4:46
46 beyond the Jordan in the valley opposite Beth-peor, in the land of tSihon the king of the Amorites, who lived at Heshbon, whom Moses and the people of Israel defeated when they came out of Egypt.
Deuteronomy 34:6
6 and he buried him in the valley in the land of Moab opposite Beth-peor; but ano one knows the place of his burial to this day.