Joshua 13:15-17

And Moses gave unto the tribe of the children of Reuben according to their families. And their border was from Aroer, that is on the edge of the valley of the Arnon, and the city that is in the middle of the valley, and all the plain by Medeba; Heshbon, and all its cities that are in the plain; Dibon, and Bamoth-baal, and Beth-baal-meon