Cross reference
Daniel 10:4
4 And on the twenty-fourth day of the first month I was by the side of the great river;
Genesis 2:14
14 And the name of the third river is Tigris, which goes to the east of Assyria. And the fourth river is Euphrates.
Ezekiel 1:3
3 The word of the Lord came to me, Ezekiel the priest, the son of Buzi, in the land of the Chaldaeans by the river Chebar; and the hand of the Lord was on me there.
Daniel 8:2
2 And I saw in the vision; and when I saw it, I was in the strong town Shushan, which is in the country of Elam; and in the vision I was by the water-door of the Ulai.