Spicket River

The Shawsheen River is a 26.7-mile-long (43.0 km) tributary of the Merrimack River in northeast Massachusetts. The name has had various spellings. According to Bailey's history of Andover, the spelling Shawshin was the most common in the old records, although Shawshine, Shashin, Shashine, Shashene, Shawshene, and later, Shawsheen, are found. The name, says Bailey, is said to mean "Great Spring".The river runs generally northward through the towns of Bedford, Billerica, Wilmington, Tewksbury, Andover, and Lawrence, where it joins the Merrimack. Like its parent, the river has played an important role in the development of the area, including industrial development, with many mills built to take advantage of the river's power. Today there are trails and parks located along several sections of the river, and a preservation effort is carried out by the Shawsheen River Watershed Association.In June 2001, the Merrimack River Watershed Council determined that the Shawsheen River failed to meet water quality standards. This situation was largely attributed to stormwater runoff via town, private and state storm drain systems. As a result of increased pollutants, major portions of the Shawsheen River are now listed as impaired waters on the 303(d) list of the Clean Water Act.The removal of the Marland Place Dam (originally built in the 1700s) and Balmoral Dam (originally built in the 1920s) allowed alewife and blueback herring to spawn upstream to the Ballardvale Dam in spring 2017, for the first time in over 200 years.

The Everett Mills are a group of buildings consisting of the Everett and Stone Mills in Lawrence, Massachusetts. A former cotton textile mill, it was the site of the start of the Bread and Roses strike in 1912 and the one time workplace of Robert Frost.

The Senator Patricia McGovern Transportation Center, also known as the McGovern Transportation Center or simply Lawrence station, is a transit station in Lawrence, Massachusetts. It serves the MBTA Commuter Rail Haverhill Line and Merrimack Valley Regional Transit Authority local bus service. The station, which opened in 2005, is the latest of seven distinct stations located in Lawrence since 1848; it is located in the city's Gateway District.

Holy Trinity Parish - designated for Polish immigrants in Lawrence, Massachusetts, United States. Founded 1905. It was one of the Polish-American Roman Catholic parishes in New England in the Archdiocese of Boston.The parish closed November 1, 2004.

The Wood Worsted Mill is located at South Union St. and Merrimack Street, on the south bank of the Merrimack River, in Lawrence, Massachusetts. The mill building was constructed between 1906 and 1909 for the American Woolen Company, and was dubbed by some locals as the "eighth wonder of the world" due to its size. It is a six-story brick building that is 1,300 feet (400 m) long and 125 feet (38 m) high, and encompasses some 17 miles (27 km) of aisles. Its purpose when built was to perform the complete textile manufacturing cycle of worsted woolens, from raw material to finished fabric, under a single roof.The surviving mill elements include the main building and a portion of a storehouse. The storehouse is a seven-story brick building located just east of the main building, of which approximately half remains from its original construction. The two sections (of an original four) were demolished in 2009, along with a number of other structures in the complex, including sections of the main mill building.The main mill building as it now stands is divided into four parts, featuring Romanesque Revival styling executed in brick with granite and cast stone detailing. The first is an office section, which protrudes from the main body. Like the main part of the building it is six stories, but is topped by a clock tower. The other three sections were originally labelled D, E, and F, and extend eastward from the office. Section D is 33 window bays, E is 42, and F 45 window bays in length. There are three stairwell towers that interrupt the pier-and-spandrel construction of the length of the building on its south (street-facing) elevation. These stairhouses are where entry is gained to the premises, through doorways recessed under arches. The north facade, facing the river, is uniformly window bays, broken only by wrought iron fire escapes and a few bricked-up bays where the building was connected to the demolished A, B, and C sections via covered bridges over a railroad spur.The mill complex was listed on the National Register of Historic Places on August 12, 2010. At the time of the listing, section D was being converted to residential housing.

The Essex Company Offices and Yard, at 6 Essex Street in Lawrence, Massachusetts, are the historic headquarters of the Essex Company, which was responsible for Lawrence's founding in 1847 and development in the 19th century. These facilities were built in 1883–84, and consist of a street-facing office building and four others: a carpenter's shop, foundry, garage, and storage building. They were designed by Hiram Mills, the Essex Company's chief engineer. It is currently the home of the Lawrence History Center's Immigrant City Archives and Museum. The complex was listed on the National Register of Historic Places in 1979, and included in the North Canal Historic District in 1984.

The Pemberton Mill was a large factory in Lawrence, Massachusetts. It suddenly collapsed and occupants were crushed or burned alive on January 10, 1860, in what has been called "the worst industrial accident in Massachusetts history" and "one of the worst industrial calamities in American history." An estimated 88 to 145 workers were killed and 166 injured.Investigators attributed the disaster to substandard construction that was then drastically overloaded with second-floor equipment, all evident and preventable. The event was cited in improvements to industrial construction and workplace safety. The mill was soon rebuilt in place.

The John R. Rollins School is a historic school at 451 Howard Street in Lawrence, Massachusetts. The three story brick structure was built in 1892 in the Richardsonian Romanesque style, and is a prominent feature of the Prospect Hill neighborhood, visible from nearby Interstate 495. It is named for John Rodman Rollins (1817-1892), a local politician who served both as mayor and superintendent of schools.The building was listed on the National Register of Historic Places in 2000. It is still in use as a school.

Engine House No. 6 is a historic firehouse at 480 Howard Street in Lawrence, Massachusetts. Built in 1895-96 to a design by John Ashton, the Colonial Revival brick building is the oldest firehouse building in the city, and its design was used in the development of other city fire stations. Shuttered by budget cuts in 2009, it was reopened in 2012, and continues to serve its original purpose. It was listed on the National Register of Historic Places in 2004.

Essex Company Machine Shop, also known as Stone Mill or the Lawrence Machine Shop, is a historic machine shop on Union Street in Lawrence, Massachusetts. It was built in 1846 and added to the National Register of Historic Places in 1972.

The Mechanics Block Historic District is a historic district at 107–139 Garden St. and 6–38 Orchard Street in Lawrence, Massachusetts. It encompasses two segments of brick rowhouses that are back-to-back. The rowhouses are 2+1⁄2-story brick buildings, organized into mirror-image pairs, with a single gable-roof dormer piercing the side-gable roofs for each unit. They were built in 1847 by the Essex Company (the development arm of the Lawrence mill operators) as worker housing.The district was listed on the National Register of Historic Places in 1973, and expanded in 1978.

The buildings at 24–30 Summer St. are a series of brick rowhouses in Lawrence, Massachusetts. The three story Second Empire residences were built in 1877 for Joseph Bushnell and E. S. Yates as rental properties. They consist of four units, arranged in mirror-image pairs. Within each pair the entrances are in the center, and there is a projecting bay section on the outside, which rises to the top of the second floor, where the mansard roof begins. There are single-window dormers projecting from the roof above the doorways, and double-window dormers above the bay. Both the larger dormers and the entrances have segmented-arch settings. The doorways are flanked by decorative brickwork, and there are corbelled brickwork courses above the first and second-floor windows. The buildings have had only minor exterior alteration since their construction.The buildings were listed on the National Register of Historic Places in 1985.