The waters of Ripliancum are located northward of the valley of Shurr, hill Comnor, valley of Corihor, and Ogath. From a map of all Book of Mormon locations, the waters of Ripliancum are far enough northward to be associated with the land northward and would be consistent with one of the 'large bodies of water' mentioned as being in the land northward.
Commentaries (
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HELAMAN 2:4 [3:4]: And they did travel to an exceeding great distance, insomuch that they came to large bodies of water, and many rivers;
Commentary: This verse references the places of Desolation, land Northward, waters of Ripliancum, and Zarahemla. The term 'they' refers to people from the land of Zarahemla. People were leaving the land of Zarahemla to go to the land northward. The term 'bodies' is plural, so there were at least two large bodies of water (lakes) and many rivers near, or in, the land northward. No fountains are mentioned in the description. The land Northward is northward of the land of Zarahemla by an 'exceeding great distance'. It is interesting to note that the land northward has at least one large body of water and that the Jaredites a few hundred years before the Nephites describe in the Book of Ether a large body of water in the northernmost parts of their land as the waters of Ripliancum.
ETHER 6:80 [15:8]: And it came to pass that he came to the waters of Ripliancum, which, by interpretation, is large, or to exceed all; wherefore, when they came to these waters, they pitched their tents; and Shiz also pitched his tents near unto them; and therefore on the morrow, they did come to battle.
Commentary: This verse references the places of the hill Comnor, valley of Corihor, valley of Shurr and the waters of Ripliancum. The area held by Coriantumr is somewhere near the waters of Ripliancum. The direction of travel indicates they came from the valley of Corihor and valley of Shurr (with the hill Comnor between these valleys), which were eastward and southward of the waters of Ripliancum. So, the waters of Ripliancum are westward and northward of the valley of Corihor and the valley of Shurr. Given that this is the first mention of this place, it is interesting to note that the waters of Ripliancum had already been named and Ether knew the name. This indicates that the Jaredites previously knew about this place.
ETHER 6:82 [15:10]: And it came to pass that the armies of Coriantumr did press upon the armies of Shiz, that they beat them, that they caused them to flee before them; and they did flee southward, and did pitch their tents in a place which was called Ogath.
Commentary: This verse references the places of Ogath, the valley of Corihor, the valley of Shurr, and the waters of Ripliancum. The battle started at the waters of Ripliancum, so, Ogath is south of the waters of Ripliancum. With the armies heading southward, the armies of Shiz were south of the armies of Coriantumr. The armies would have passed again through the Valleys of Corihor and Shurr to get to Ogath.
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