EntityQ901567· pop 9· linked from 7 articlesUkinrek maarsSign in to saveTwo volcanic craters in Alaska, U.S.ConnectionsmaarEntityAlaskaEntitygeographic coordinate systemEntitymountain rangeEntityWayback MachineEntityBering SeaEntitydigital object identifierEntitybasaltEntityQuaternaryEntitysummitEntityvolcanic craterEntitySmithsonian InstitutionEntitybibcodeEntityolivineEntityAlaska PeninsulaEntityvolcanic eruptionEntitytephraEntitylava domeEntityvolcanic crater lakeEntityLake and Peninsula BoroughEntityCategoriesActive volcanoesAleutian RangeApril 1977 in the United StatesLandforms of Lake and Peninsula Borough, AlaskaMaars of AlaskaMarch 1977 in the United StatesQuaternary AlaskaVolcanic crater lakes