2019 P & D Massachusetts Lowell National Historical Park Quarters GEM BU America the Beautiful

First settled by Europeans in the 17th century, East Chelmsford (later renamed Lowell in honor of the founders' deceased business partner) became an important manufacturing center along the Merrimack River in the early 1820s. It was seen as an attractive site for the construction of a planned industrial city, with the Middlesex Canal (completed in 1803) linking the Merrimack to the Charles River, which flows through Boston, and with the powerful 32' Pawtucket Falls. The already existent Pawtucket Canal, designed for transportation around the Pawtucket Falls on the Merrimack, became the feeder canal for a 5.6-mile long system of power canals based around the falls. Unlike many other mill towns, however, Lowell's manufacturing facilities were built based on a planned community design. Specifically Lowell was planned as reaction to the mill communities in Great Britain, which were perceived as cramped and inhumane. Initially the factories of Lowell were built with ample green space and accompanying clean dormitories, in a style that anticipated such later architectural trends as the City Beautiful movement in the 1890s. Lowell attracted both immigrants from abroad and migrants from within New England and Quebec (including a large proportion of young women) who lived in the dormitories and worked in the mills.

From 2010 through 2021 the US Mint is issuing commemorative quarters with special reverse designs celebrating National Parks and other National Sites. A park or site is being honored in each of the 50 States, the District of Columbia, and the five US Territories: Puerto Rico, Guam, American Samoa, US Virgin Islands, and Northern Mariana Islands. Each National Park or National Site was selected for its natural or historical significance. The National Park Quarters are being minted and issued at the rate of 5 designs a year, in approximately ten week intervals. The National Park Quarters are being released in the order that the locations were first designated as National Sites. The Obverse side of the coins feature a smaller restoration of the original Washington Quarter portrait, modeled from designer John Flanagan's 1932 plaster. The Reverse of each coin will feature a representation of the unique character and environment of each State, District, or Territory's National Park or Historic Site.

Circulation strikes will be made at the Philadelphia (P) and Denver (D) Mints (starting in 2012 circulation strikes were also minted at the San Francisco (S) Mint). The San Francisco (S) mint will strike the BUs in clad composition and silver. Clad composition strikes contain an outer layer of 75% copper and 25% nickel bonded to an inner core of pure copper with a 24.33 mm diameter, 5.67 grams weight, and a reeded edge. The silver strikes will contain 90% silver and 10% copper with a 24.33 mm diameter, 6.25 grams weight, and a reeded edge.