'Hill' in the Bible

So Solomon assigned 70,000 men to carry loads, 80,000 men to quarry stone in the mountains, and 3,600 to supervise them.

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

And when Asa heard these words, the prophecy of Azariah the son of Oded the prophet, he took courage and removed the repulsive idols from all the land of Judah and Benjamin and from the cities which he had captured in the hill country of Ephraim. Then he restored the altar [of burnt offering] of the Lord which was in front of the porch [of the temple] of the Lord.

So Jehoshaphat lived in Jerusalem, and he 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.

Moreover, he made [idolatrous] high places in the hill country of Judah, and caused the inhabitants of Jerusalem to be unfaithful [to God], and he led Judah astray [compelling the people’s cooperation].

Moreover, he built cities in the hill country of Judah, and in the forests he built fortresses and towers.