image/svg+xmlOpenclipartstarboard buoy2008-01-24T17:54:56nautical symbol for U.S. national park maps. PD US Government - National Park Service, U.S. Dept. of the Interiorhttps://openclipart.org/detail/11639/starboard-buoy-by-johnny_automaticjohnny_automaticbuoycartographyexternalsourcemapnauticalparkpictographsymbol