'Hill Country Of Ephraim' in the Bible

So Joshua replied to them, "Since you're so numerous, go up to the forest and clear ground there for yourselves in the territory where the Perizzites and Rephaim are, because the hill country of Ephraim is too narrow for you."

By a command from the LORD, they allocated the town that he requested, Timnath-serah in the hill country of Ephraim. He rebuilt the town and settled there.

So they set apart Kedesh in Galilee in the hill country of Naphtali, Shechem in the hill country of Ephraim, and Kiriath-arba (also known as Hebron) in the hill country of Judah.