'Slopes' in the Bible

So Joshua overcame all the land, the hill-country and the South and the lowland and the mountain slopes, and all their kings; all were put to death: and every living thing he gave up to the curse, as the Lord, the God of Israel, had given him orders.

And the Arabah to the sea of Chinneroth, to the east, and to the sea of the Arabah, that is the Salt Sea, to the east, the way to Beth-jeshimoth; and on the south, under the slopes of Pisgah:

In the hill-country, and in the lowland, and in the Arabah, and on the mountain slopes, and in the waste land, and in the South; the Hittites, the Amorites, and the Canaanites, the Perizzites, the Hivites, and the Jebusites.

And Beth-peor, and the slopes of Pisgah, and Beth-jeshimoth;