This Landsat image of 3 October 2011 shows the Mississippi River Delta, where the largest river in the United States empties into the Gulf of Mexico.
 
In this false-colour image, land vegetation appears pink, while the sediment in the surrounding waters are bright blue and green. The delta is known as the ‘bird-foot’ delta because of the shape created by the channels extending outward.

(Source: , via mmmkayy)