EntityQ517787· pop 25· linked from 1,388 articlesMerrimack RiverSign in to saveriver in New Hampshire and Massachusetts, United StatesConnectionsConcordEntityManchesterEntityLowellEntityNashuaEntityLawrenceEntityUnited States Geological SurveyEntityHaverhillEntityNewburyportEntityIpswichEntityInterstate 93EntityUnited StatesCountryFrenchEntityAtlantic OceanEntityMassachusettsEntityNew HampshireEntityBostonEntitylakeEntitybacteriaEntityleadEntitymercuryEntityCategoriesConcord, New HampshireGeography of Lowell, MassachusettsHaverhill, MassachusettsLawrence, MassachusettsManchester, New HampshireMassachusetts placenames of Native American originMerrimack RiverNashua, New HampshireNew Hampshire placenames of Native American originRivers of Essex County, MassachusettsRivers of Hillsborough County, New Hampshire