The boundaries between districts are the center lines of streets, alleys, railroad rights-of-ways, streams, or such lines extended or lines parallel thereto or concentric therewith, or property lines when proximate thereto or may be lines otherwise indicated on the Zoning Map. Any person aggrieved by the interpretation of the Zoning Map by the Zoning Officer concerning the location of the district boundary may appeal to the Zoning Hearing Board, and the Zoning Hearing Board shall determine the location of the district boundary.