Deuteronomy 3:29
"So we abode in the valley over against Bethpeor."
Cross References (ranked by relevance)
On this side Jordan, in the valley over against Bethpeor, in the land of Sihon king of the Amorites, who dwelt at Heshbon, whom Moses and the children of Israel smote, after they were come forth out of Egypt:
And he buried him in a valley in the land of Moab, over against Bethpeor: but no man knoweth of his sepulchre unto this day.
And Israel joined himself unto Baalpeor: and the anger of the LORD was kindled against Israel.
Your eyes have seen what the LORD did because of Baalpeor: for all the men that followed Baalpeor, the LORD thy God hath destroyed them from among you.