'Hill Country Of Ephraim' in the Bible

A certain man lived in Ramathaim-zophim, which is in the hill country of Ephraim. He was Jeroham's son Elkanah, the grandson of Elihu and grandson of Tohu, who was the son of Zuph, an Ephraimite.

He went through the hill country of Ephraim and through the region of Shalishah, but they did not find them. Then they went through the region of Shaalim, but they were not there. They also went through the territory of the descendants of Benjamin, but they did not find them.

All the Israelis who had been hiding in the hill country of Ephraim heard that the Philistines were fleeing, and even they pursued the Philistines in the battle.