Joshua 17:10

southward Southward of the brook the land belonged to Ephraim, northward of the same it belonged to Manasseh, and the sea constituted the western border.

they met or "struck upon" Asher in the north and on Issachar in the east. Thus the two tribes were bounded (a) on the eastby Issachar; (b) on the northby Asher; (c) on the westby the sea; (d) and on the southby Benjamin and Dan.