Numbers 21:20

and from Bamoth in the valley, that is in the country of Moab, to the top of Pisgah, which looketh toward Jeshimon. So they reached the wide valley which is in the fields of Moab, a plateau which on the one side overlooks the desert on the other slopes down to the Dead Sea. While the location of these camps, for the most part, is a matter of conjecture, the text plainly shows that the army of Israel, having marched around the Land of Seir and skirted the extreme edge of the land of the Moabites, pretty well out in the Arabian Desert, now turned westward, along the southern banks of the tributaries of the Arnon, until the host reached the more thickly settled portions of the lands under Moabitish dominion. So God had made good His promise to the people and led them safely and well to the very boundaries of Canaan, although they were still on the eastern side of the Dead Sea and the river Jordan.