Where can you locate the "crofutt" called “the star of empire

In the painting American Progress by John Gast in 1872, there is a woman in the center and George Crofutt who commissioned the painting called her "Progress", and on her forehead is where "The Star of the Empire" is located. American Progress graphically represents the American westward development process.

these civilizations were located around fertile rivers, where they could produce an abundance of crops

the name of the theory is landmass theory.