Wikipedia
Cumorah (; also known as Mormon Hill, Gold Bible Hill, and Inspiration Point) is a drumlin in Manchester, New York, United States, where Joseph Smith said he found a set of golden plates which he translated into English and published as the Book of Mormon.
In the text of the Book of Mormon, "Cumorah" is a hill located in a land of the same name, which is "a land of many waters, rivers and fountains". In this hill, a Book of Mormon figure, Mormon, deposited a number of metal plates containing the record of his nation of Nephites, just prior to their final battle with the Lamanites in which at least 230,000 people were killed.
Early Latter Day Saints assumed that the Cumorah in New York was the same Cumorah described in the Book of Mormon, but in the early-20th century, scholars from the Reorganized Church of Jesus Christ of Latter Day Saints (RLDS Church) and The Church of Jesus Christ of Latter-day Saints (LDS Church) began to speculate that there were two such hills and that final battle in the Book of Mormon took place on a hill in southern Mexico, Central America, or South America. The LDS Church has no official position on the matter, and while these hypotheses are not held by some leaders and members of the LDS Church,On the subject of a Mesoamerican Cumorah, apostle Joseph Fielding Smith wrote in 1956:
It is known that the Hill Cumorah where the Nephites were destroyed is the hill where the Jaredites were also destroyed. This hill was known to the Jaredites as Ramah. It was approximately near to the waters of Ripliancum, which the Book of Ether says, "by interpretation, is large or to exceed all." ... It must be conceded that this description fits perfectly the land of Cumorah in New York ... for the hill is in the proximity of the Great Lakes, and also in the land of many rivers and fountains. (Doctrines of Salvation, vol. 3, pp. 233–34).
Apostle Mark E. Petersen stated:
I do not believe that there were two Hill Cumorahs, one in Central America and the other one up in New York, for the convenience of the Prophet Joseph Smith, so that the poor boy would not have to walk clear to Central America to get the gold plates. (123rd Annual Conference of the LDS Church, April 4–6, 1953, Conference Report, pp. 83–84; Improvement Era, June 1953, p. 423).
Bruce R. McConkie wrote:
Both the Nephite and the Jaredite civilizations fought their final great wars of extinction at and near the Hill Cumorah (or Ramah as the Jaredites termed it), which hill is located between Palmyra and Manchester in the western part of the state of New York ... Joseph Smith, Oliver Cowdery, and many early brethren, who were familiar with the circumstances attending the coming forth of the Book of Mormon in this dispensation, have left us pointed testimony as to the identity and location of Cumorah or Ramah. ( Mormon Doctrine, s.v. "Cumorah", p. 175).
they are firmly espoused by others.