Ephraim’s territory was to the south, and Manasseh’s to the north. The sea was Manasseh’s ¹  western border and their territory ²  touched Asher on the north and Issachar on the east.

I saw that the ram was butting westward, northward, and southward. No animal ¹  was able to stand before it, and there was none who could deliver from its power. ²  It did as it pleased and acted arrogantly. ³ 

It then went up to Debir from the Valley of Achor, turning northward to Gilgal (which is opposite the Pass ¹  of Adummim south of the valley), crossed to the waters of En Shemesh and extended to En Rogel.