In Ether 14:28 we find that “Coriantumr did gather his armies together upon the hill Comnor, and did sound a trumpet unto the armies of Shiz to invite them forth to battle.” According to Glenn Scott, it is very interesting to note that the blowing of a trumpet to initiate battle was a custom observed in Mesoamerica until the Spanish Conquest. [Glenn A. Scott, Voices from the Dust: New Light on an Ancient American Record, p. 58]
Geographical [Theory Map]: Ether 14:31 - 15:14 Final Battles ---> Hill Cumorah (Chronology)