Seminary manual on the Book of Mormon says the Church has no official position on its geography.
Book of Mormon Seminary Teacher Manual (Salt Lake City: The Church of Jesus Christ of Latter-day Saints, 2012), 196.
Invite a student to read Mosiah 7:1 aloud. Ask the class to identify the two locations mentioned in this verse. Copy the first diagram that accompanies this lesson on the board, and invite students to do the same in their scripture study journals or class notebooks. As you use this diagram, explain that the Church has no official position about Book of Mormon geography except that the events occurred in the Americas.