The Pony Express and Oregon Trail began in this state, and the Mississippi River and its namesake river converge at St. Louis.
This state's highest peak is located within the St. Francois Mountains, which is bordered by the Mississippi Alluvial Plains to the south. This state's Marvel Cave contains the one of the largest entrance rooms in North America and eventually became the basis of the Silver Dollar City theme park. A massive 1812 earthquake originated in this state's New Madrid Seismic Zone, and this state experienced a dioxin contamination in the 1970s at Times Beach. The Pony Express and Oregon Trail began in this state, and the Mississippi River and its namesake river converge at St. Louis. For 10 points, name this Midwestern state with capital at Jefferson City.
This state's highest peak is located within the St. Francois Mountains, which is bordered by the Mississippi Alluvial Plains to the south.
Missouri