because it is from natural fossils
Rivers look green because, all the dirt and grass in the river piles up.
What country, there are 17 Green Rivers in the world
The Green and Nolin rivers.
Lakes and rivers
Three Rivers - 2009 Code Green 1-4 is rated/received certificates of: USA:TV-PG
Chicago river (green river Chicago) gets dyed green every year.
Green anacondas hunt in rivers, streams, creeks, and marshes in South america.
Green with rivers and loads of animals.
chicago
No rivers are green except the Chicago River which is only green for one day in St. Patrick's day because it has been dyed
the snake, green and missouri
There is Green river, Jordan river Sevier river