En-rimmon, "the spring of Rimmon," is to be identified with the "Ain and Rimmon" of Joshua 15:32—two neighbouring villages, which ultimately grew into one. Zareah is no doubt the "Zoreah" of Joshua 15:33, which was in the Shephelah, or low coast tract.
Jarmuth is the town of Piram, who warred with Joshua (Joshua 10:3-27). Like Zareah, it lay in the low coast tract (Joshua 15:35).