Joshua 17:9-10

Then the border went west to the Kanah Gorge and ran along the northern edge of the gorge to the Mediterranean Sea. The land south of the gorge belonged to Ephraim. And even though there were a few towns that belonged to Ephraim north of the gorge, the land north of the gorge belonged to Manasseh. The western border of Manasseh was the Mediterranean Sea, and the tribe shared a border with the Asher tribe on the north-west and with the Issachar tribe on the north-east.