exodus 2:15 Now when Pharaoh heard this thing, he sought to slay Moses. But Moses fled from the face of Pharaoh, and dwelt in the land of Midian: and he sat down by a well. - Free Bible Online

      15. Moses fled from the face of Pharaoh--His flight took place in the second year of Thothmes I.
      dwelt in the land of Midian--situated on the eastern shore of the gulf of the Red Sea and occupied by the posterity of Midian the son of Cush. The territory extended northward to the top of the gulf and westward far across the desert of Sinai. And from their position near the sea, they early combined trading with pastoral pursuits (Ge 37:28). The headquarters of Jethro are supposed to have been where Dahab-Madian now stands; and from Moses coming direct to that place, he may have travelled with a caravan of merchants. But another place is fixed by tradition in Wady Shuweib, or Jethro's valley, on the east of the mountain of Moses.
      sat down by a well--(See on Ge 29:3).

JFB.