'Cities of the Plain' in the Bible

Abram dwelt in the land of Canaan, and Lot dwelt in the cities of the Plain, and moved his tent as far as Sodom.

And it came to pass, when God destroyed the cities of the Plain, that God remembered Abraham, and sent Lot out of the midst of the overthrow, when he overthrew the cities in which Lot dwelt.

all the cities of the plain, and all Gilead, and all Bashan, unto Salecah and Edrei, cities of the kingdom of Og in Bashan.

and all the cities of the plain, and all the kingdom of Sihon king of the Amorites, who reigned in Heshbon, whom Moses smote with the chiefs of Midian, Evi, and Rekem, and Zur, and Hur, and Reba, the princes of Sihon, that dwelt in the land.