Mississippi River

The Mississippi River, (PROSE: The City of the Dead) also known as the Mississippi, was the longest river in North America. Given its length, people in the Old West did many things to occupy their time, such as romancing, fishing, talking and gambling. (COMIC: ) According to Anji Kapoor, the Mississippi River was "America's major north-south commercial link", also noting that it was forced to empty at New Orleans instead of further west by a complicated series of levees. This network was supposed to keep the river from failing but it sometimes failed. (PROSE: The City of the Dead)

Steamboats — typically with large paddles at the rear — were a common method of travel on the Mississippi, at least in the 19th century. (PROSE: The City of the Dead, Coldheart, COMIC: )

Undated events
At some point in the Old West, Gaylord Lefevre was travelling up the river in a paddle steamer, playing cards to earn a living. After shooting a man whom he suspected of cheating, the Celestial Toymaker challenged Gaylord to a private game in his cabin, but actually lead him to his Toyroom. (COMIC: )

Ace had a dream of going up the river in a steamboat, and she very nearly got the Seventh Doctor to take her on her dream trip — before another crisis intervened. (PROSE: Timewyrm: Genesys)