Lowell’s dam / Middlesex Canal / Northern Canal / Tsongas Arena / Pawtucket Canal / Library of Congress Marriages / Suffolk Mill / /
IndustryTerm
transportation / bank / timber products / machinery / city sewage systems / /
NaturalFeature
Charles River / Concord river / Grass-ground River / Newfound Lake / Merrimack river / Merrimack / Interior Rivers / Pawtucket Falls / Squam Lake / /
Organization
Congress / National Park Service / Clean / Merrimack River Lowell National Historical Park National Park Service U.S. Department of the Interior Rivers / /