Pre Flood Rivers

Genesis 2:10-14

10 And a river went out of Eden to water the garden; and from thence it was parted, and became into four heads.

11 The name of the first is Pison: that is it which compasseth the whole land of Havilah, where there is gold;

12 And the gold of that land is good: there is bdellium and the onyx stone.

13 And the name of the second river is Gihon: the same is it that compasseth the whole land of Ethiopia.

14 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.

Commentary

This is the only description of pre-Flood geology given in the Bible.

What we have here is a river come four rivers parting from a single river that went through Eden. The first two of these rivers are called the Pison and Gihon. Despite the decryptions of their locations they do not match any post Flood rivers. The third is called the Hiddekel, which is another name for the Tigris. The forth is called Euphrates, but no location is given.

The decryption of these four pre Flood rivers having parted from a single river does both match the present world. This consistent with the considerable geologic change thought to have occurred during the Genesis Flood.

As a result these pre Flood rivers can not be the same as any post Flood rives.  It is common in history that when people move into a new area, that they name the new locations after old. So Noah's descendants probably named the post Flood Tigris and Euphrates for pre Flood Tigris and Euphrates.

This view is consistent with the tablet theory since Adam would have written this account early in the pre Flood period.

An interesting additional fact is that under the modern Euphrates exists a depression in the rock down to the pre-Cambrian which is considered by creationists to be pre-Flood. While not definitive it could be the river valley of pre-Flood Euphrates Flowed?