Albert Barnes Commentary 1 Samuel 14:2

"And Saul abode in the uttermost part of Gibeah under the pomegranate-tree which is in Migron: and the people that were with him were about six hundred men;" — 1 Samuel 14:2 (ASV)

Under a pomegranate - Compare 1 Samuel 22:6 and Judges 4:5. Saul was at the northern extremity of Gibeah, about an hour’s march from Geba, where Jonathan was.

Migron, if the reading is correct, must be a different place from the Migron mentioned in Isaiah 10:28.