Reference: Ephraim, Mount
Easton
the central mountainous district of Palestine occupied by the tribe of Ephraim (Jos 17:15; 19:50; 20:7), extending from Bethel to the plain of Jezreel. In Joshua's time (Jos 17:18) these hills were densely wooded. They were intersected by well-watered, fertile valleys, referred to in JER 50:19. Joshua was buried at Timnath-heres among the mountains of Ephraim, on the north side of the hill of Gaash (Jg 2:9). This region is also called the "mountains of Israel" (Jos 11:21) and the "mountains of Samaria" (Jer 31:5-6; Am 3:9).
See Verses Found in Dictionary
Joshua came at that time, and cut off the Anakim from the hill country, from Hebron, from Debir, from Anab, and from all the hill country of Judah, and from all the hill country of Israel: Joshua utterly destroyed them with their cities.
Joshua said to them, "If you are a great people, go up to the forest, and clear land for yourself there in the land of the Perizzites and of the Rephaim; since the hill country of Ephraim is too narrow for you."
but the hill country shall be yours. Although it is a forest, you shall cut it down, and it's farthest extent shall be yours; for you shall drive out the Canaanites, though they have chariots of iron, and though they are strong."
According to the commandment of Yahweh, they gave him the city which he asked, even Timnathserah in the hill country of Ephraim; and he built the city, and lived there.
They set apart Kedesh in Galilee in the hill country of Naphtali, Shechem in the hill country of Ephraim, and Kiriath Arba (the same is Hebron) in the hill country of Judah.
They buried him in the border of his inheritance in Timnath Heres, in the hill country of Ephraim, on the north of the mountain of Gaash.
Again you shall plant vineyards on the mountains of Samaria; the planters shall plant, and shall enjoy [its fruit]. For there shall be a day, that the watchmen on the hills of Ephraim shall cry, Arise, and let us go up to Zion to Yahweh our God.
Proclaim in the palaces at Ashdod, and in the palaces in the land of Egypt, and say, "Assemble yourselves on the mountains of Samaria, and see what unrest is in her, and what oppression is among them."
Smith
E'phra-im, Mount,
is a district which seems to extend as far south as Ramah and Bethel,
compared with 2Chr 15:8 places but a few miles north of Jerusalem, and within the limits of Benjamin.
See Verses Found in Dictionary
Now there was a certain man of Ramathaim Zophim, of the hill country of Ephraim, and his name was Elkanah, the son of Jeroham, the son of Elihu, the son of Tohu, the son of Zuph, an Ephraimite:
His return was to Ramah, for there was his house; and there he judged Israel: and he built there an altar to Yahweh.
When Asa heard these words, and the prophecy of Oded the prophet, he took courage, and put away the abominations out of all the land of Judah and Benjamin, and out of the cities which he had taken from the hill country of Ephraim; and he renewed the altar of Yahweh, that was before the porch of Yahweh.