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
And Joshua came in, 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, - with their cities, did Joshua devote them to destruction.
And Joshua said unto them: If, a numerous people, thou art, get thee up to the forest, and cut down for thyself there, in the land of the Perizzites and of the Rephaim, - seeing that, too narrow for thee, is the hill country of Ephraim.
for, the hill country, shall be thine, in that, a forest, it is, therefore canst thou cut it down, and thine shall be the extensions thereof, - for thou shalt dispossess the Canaanites, though, chariots of iron, they have, and though, strong, they are.
at the bidding of Yahweh, gave they unto him the city which he asked, even Timnath-serah, in the hill country of Ephraim, - and he built the city and dwelt therein.
So then they set apart Kadesh in Galilee, in the hill country of Naphtali, and Shechem, in the hill country of Ephraim, and Kiriath-arba, the same, is Hebron, in the hill country of Judah.
And they buried him within the bounds of his inheritance, in Timnath-heres, in the hill country of Ephraim, - on the north of Mount Gaash.
Again, shalt thou plant vineyards in the mountains of Samaria, The planters have planted, and have laid open the vineyards, For it is a day the watchmen have proclaimed throughout the hill country of Ephraim, - Arise ye and let us go up to Zion, unto Yahweh our God.
Announce it over the palaces in Ashdod, and over the palaces in the land of Egypt, - and say ye - Gather yourselves together upon the mountains of Samaria, and behold ye - the great disorders in the midst thereof, and the oppressed within her.
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
And there was a certain man, of Ramathaim-zuphi, of the hill country of Ephraim, - whose name, was Elkanah, son of Jeroham, son of Elihu, son of Tohu, son of Zuph, an Ephraimite;
And, his returning, was to Ramah, for, there, was his house, and, there, judged he Israel, - so he built there an altar unto Yahweh.
And, when Asa heard these words and the prophecy of Oded the prophet, he strengthened himself, and put away the abominations out of all the land of Judah and Benjamin, and out of the cities which he had captured out of the hill country of Ephraim, - and renewed the altar of Yahweh, that was before the porch of Yahweh.