Judges 1:19

1:19 The Lord was with the men of Judah. They conquered the hill country, but they could not conquer the people living in the coastal plain, because they had chariots with iron-rimmed wheels.

Joshua 17:16

17:16 The descendants of Joseph said, “The whole hill country is inadequate for us, and the Canaanites living down in the valley in Beth Shean and its surrounding towns and in the Valley of Jezreel have chariots with iron-rimmed wheels.”