Mapping the territory of the tribe of Zebulun involves a careful tracing of its eastern edges, marked by a series of specific cities and geographic landmarks. From its previous location, the boundary line travels east to the city of Gath-hepher. This location holds historical significance as the hometown of the prophet Jonah, the son of Amittai [רש״י, רד״ק, מלבי״ם]. Continuing its path, the border reaches another city known as Eth-kazin [רש״י, מצודת דוד].
The boundary then extends further east toward the city of Rimmon. At this point, the path of the border undergoes a distinct change in direction. The primary approach among commentators is that upon reaching Rimmon, the boundary simply curves and turns toward another city named Neah [רש״י, מצודת דוד, ביאור שטיינזלץ].
A different perspective offers a more detailed geographic picture, explaining why Rimmon is uniquely described as being surrounded. According to this view, the boundary line actually wrapped around the city of Rimmon from three different directions. This unusual path caused the city to jut out from the main border line like a horn pointing eastward. Only after completely encircling Rimmon did the boundary turn back toward the west to reach the city of Neah [מלבי״ם].