Shunem; a town in the tribe of Issachar, Joshua 19:18. Gilboa; a mountain not far from the valley of Jezreel, where the battle was fought, 1 Samuel 31:1 2 Samuel 1:21. So the two armies seem to be placed in the same manner as they were 1Sa 17, each upon a hill, and a valley between them.
Related Commentaries of 1 Samuel 28:4
1 Samuel 28:4
4 And the Philistines gathered themselves together, and came and pitched in Shunem: and Saul gathered all Israel together, and they pitched in Gilboa.