I found this article the other day and thought it might catch the interest of some.
The Lost Rivers of the Garden of Eden
The quest for pinpointing the exact location of the Biblical Garden of Eden and the four rivers almost rivals the quest for the location of fabled Atlantis. And the theories that abound are almost as numerous as the interpretations of the seven days of Genesis. Before tackling this question let's review what is written in Genesis about the four rivers:
And a river went out of Eden to water the garden; and from thence it was parted, and became into four heads. The name of the first is Pison: that is it which compasseth the whole land of Havilah, where there is gold; And the gold of that land is good: there is bdellium and the onyx stone. And the name of the second river is Gihon: the same is it that compasseth the whole land of Ethiopia. And the name of the third river is Hiddekel: that is it which goeth toward the east of Assyria. And the fourth river is Euphrates.
(Genesis 2:10-14 KJV)