Located twenty-five miles north of Boston, Lawrence, Massachusetts is truly a city of immigrants and industry. Lawrence was built in the 1840's as the nation's first planned industrial city. The massive mill buildings lining the Merrimack River, the striking clock and bell towers and the breath-taking Great Stone Dam are all a tribute to Lawrence's industrial heritage. The harnessed strength of the Merrimack River and its system of canals fueled the Lawrence mills that produced textiles for the American and European markets. By the early 20th century the city was a world leader in the production of cotton and woolen textiles. Known as the "Immigrant City", Lawrence has always been a multi-ethnic and multicultural gateway city.