The correct answer to this open question is the following.
Although there are no cotext or further references regarding Hershey routes or zones attached, we can comment on the following general terms.
Based on patterns of accessibility and surface transportation, the region that is the least likely to be involved in the production of a Hershey Kiss is the one that does not the type of consumer Hershey targets according to its marketing segmentation and those places that inaccessible to have a profitable operation route for transportation.
Accessibility means that a location can be easily or conveniently reached from the transportation hub of the company. The distance of the location should be reachable within the traced route. It also has to have a number of consumers interested in buying the chocolate. It also has to reachable through cars, trucks, airplanes, or ships at efficient costs.
Hersey is a multinational company that has a presence in many countries. The consuming production of its products is 90% within the United States market and 10% abroad.