The Tigris and Euphrates Rivers
            Map of The Tigris and Euphrates Rivers (in Ancient Times)
 The Tigris and Euphrates Rivers During the Time of 
Genesis in the Bible. 
The Tigris. The Tigris River was known by the Hebrews as 
"Hiddekel" and is one of the two large rivers of 
Mesopotamia, which the Bible says, flowed from the Garden 
of Eden (Gen 2:14). It is formed by the confluence of two 
rivers that flow from the mountains of Armenia. In 
ancient times the courses of the Tigris and Euphrates 
were separate. Their confluence before they flow into the 
Persian Gulf is very recent. The Tigris has a greater 
volume of water than the Euphrates and flows faster, 
making upstream navigating impossible. The powerful and 
prosperous cities of Nineveh, Calah and Ashur flourished 
along its shores.
The Euphrates. The Euphrates River is one of the largest 
rivers of western Asia, about 1700 miles long. In the 
Bible it is referred to by several names such as the 
"great river" or just "the river" and is among the four 
rivers, which flowed from the Garden of Eden (Gen 2:14). 
It formed the northeastern limit of the Promised Land 
(Gen 15:18). The river, which receives its waters from 
the mountains of Armenia, flows through a deep and narrow 
gorge, but as it descends toward Babylon, the Euphrates 
and the Tigris take different routes, which form the 
great broad plain of Mesopotamia. The Euphrates has a 
very strong current and therefore is navigable only in 
its lower parts. Along its shores flourished some of the 
important cities of Mesopotamia. The greatest was 
Babylon.
Between the Rivers. The word Mesopotamia means the land 
"between the rivers" which were the Tigris and Euphrates. 
Although the courses have changed dramatically since 
ancient times we know the area was nearly 700 - 1000 
miles long and nearly 300 miles across. The rivers were 
so large that the land was considered an "island" that 
was between them. But the heart of ancient Mesopotamia 
was in the northwest where the Euphrates made a huge bend 
at the northern portion of the Tigris as shown in the map 
above. The Bible records Mesopotamia as the city of 
Nahor, Abrahams brother (Genesis 24:10).
                          
 Read More about The Tigris and Euphrates Rivers