caption: The image shows a poster of a map of the Mississippi River, with text at the top and bottom of the image. The map is detailed, showing the various rivers and bodies of water that make up the river, as well as the surrounding landscape. The colors used in the map are mostly shades of blue and green, with some yellow and red accents. The text on the poster is written in a bold font, and the map is framed by a thin black border.