Chapter 7 teaches us quite a bit about the lands of the Jaredites. We learn that the land of their first inheritance was likely not very far from Moron (see vs. 16-17). We are told that the land of Moron…was near the land which is called Desolation by the Nephites (v. 6). We are told that the land of Desolation (so named because the Jaredites were destroyed there, see Hel 3:6) was near the narrow neck of land (Alma 22:31-32). Therefore, the Jaredites landed north of the narrow neck of land, but not by very far. For the most part, they lived in the same general area for their entire history.
“Where were the last great battles of the Jaredites taking place? Obviously in the land of or near the first inheritance of that people, near ’the land which is called Desolation by the Nephites,’ a long way, as every Book of Mormon student knows, from what is now Cumorah in the state of New York. One would have to be very credulous, indeed, to believe that Coriantumr and Shiz would lead their already exhausted armies about 3,000 miles from the region of Moron to fight their very last battles around the Hill Ramah in what is now New York state. The logistical problems for both armies would be immense and completely ridiculous to assume.” (Sidney B. Sperry, Book of Mormon Compendium pp. 450-451)