It is perhaps significant the Lord named this site because of a future event—the pre-millennial assembly of Adam and his faithful descendants prior to the second coming of Christ. It has generally been presumed that "Spring Hill," Missouri is thus the Adam-ondi-Ahman of Adam's mortal meeting with his posterity and the pre-millennial visit, which is certainly possible.
An alternate interpretation would be the Lord has given the Adam-ondi-Ahman name to a second site (i.e., at Spring Hill , Missouri ) in memorial of the first great meeting of the whole righteous human race.
It it Church Doctrine that the Garden of Eden was in Missouri?
Without a doubt, I think the "two different places with the same name used interchangeably" is my favorite apologetic argument.