'Hill' in the Bible

Then Abijah stood on Mount Zemaraim, which is in the hill country of Ephraim, and said, “Listen to me, Jeroboam and all Israel:

Now when Asa heard these words and the prophecy which Azariah the son of Oded the prophet spoke, he took courage and removed the abominable idols from all the land of Judah and Benjamin and from the cities which he had captured in the hill country of Ephraim. He then restored the altar of the Lord which was in front of the porch of the Lord.

So Jehoshaphat lived in Jerusalem and went out again among the people from Beersheba to the hill country of Ephraim and brought them back to the Lord, the God of their fathers.

He built towers in the wilderness and hewed many cisterns, for he had much livestock, both in the lowland and in the plain. He also had plowmen and vinedressers in the hill country and the fertile fields, for he loved the soil.

Moreover, he built cities in the hill country of Judah, and he built fortresses and towers on the wooded hills.