Mount Desert Island From Wikipedia, the free encyclopedia Jump to navigationJump to search Mount Desert IslandGeographyLocationCoordinatesAreaHighest elevationHighest pointAdministrationStateCountyLargest settlementDemographicsPopulationPop. densityEthnic groups Bass Harbor Head Light Mount Desert Island Atlantic Ocean 44.342827°N 68.307138°WCoordinates: 44.342827°N 68.307138°W 108 sq mi (280 km..