Genesis 2:10-15

A stream flowed in Eden and watered the garden; beyond Eden it divided into four rivers. The first river is the Pishon; it flows round the country of Havilah. (Pure gold is found there and also rare perfume and precious stones.) The second river is the Gihon; it flows round the country of Cush. The third river is the Tigris, which flows east of Assyria, and the fourth river is the Euphrates. Then the LORD God placed the man in the Garden of Eden to cultivate it and guard it.