This term is also is used to describe a (*) speed drive from coast to coast in the United States, and one fictional route with this in its name is named for the ► Wabash Railroad.
A series of cliffs with this name is found in on Alexander Island in Antarctica; Rock City in Kansas contains a number of examples of these objects. A river with this name can be found in northwestern North Dakota before it flows into the Missouri and is named for having high concentrations of rocks that resemble these objects. This term is also is used to describe a (*) speed drive from coast to coast in the United States, and one fictional route with this in its name is named for the ► Wabash Railroad. For 10 points--give this word that names a type of round rock concretion.
A series of cliffs with this name is found in on Alexander Island in Antarctica; Rock City in Kansas contains a number of examples of these objects.
Cannonball