American Powder Mills (1883–1929) was a

Massachusetts Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut assachusett writing systems, məhswatʃəwiːsət'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England ...

gunpowder Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, carbon (in the form of charcoal) and potassium nitrate (saltpeter). ...

manufacturing complex on the

Assabet River The Assabet River is a small, long river located about west of Boston, Massachusetts, United States.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed October 3, 2011 The Assabet rises ...

. It expanded to include forty buildings along both sides of the river in the towns of

Acton Acton may refer to: Places Antarctica * Mount Acton Australia * Acton, Australian Capital Territory, a suburb of Canberra * Acton, Tasmania, a suburb of Burnie * Acton Park, Tasmania, a suburb of Hobart, Tasmania, formerly known as Acton Canada ...

Concord Concord may refer to: Meaning "agreement" * Pact or treaty, frequently between nations (indicating a condition of harmony) * Harmony, in music * Agreement (linguistics), a change in the form of a word depending on grammatical features of other ...

, Maynard, and

Sudbury Sudbury may refer to: Places Australia * Sudbury Reef, Queensland Canada * Greater Sudbury, Ontario (official name; the city continues to be known simply as Sudbury for most purposes) ** Sudbury (electoral district), one of the city's federal e ...

. Press mills, kernelling mills, glazing mills, and storehouses were dispersed over four-hundred acres to minimize damage during explosions. A

narrow gauge railway A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge narrower than standard . Most narrow-gauge railways are between and . Since narrow-gauge railways are usually built with tighter curves, smaller structur ...

transferred raw materials and products between the buildings.

History

Nathan Pratt purchased a

mill pond A mill pond (or millpond) is a body of water used as a reservoir for a water-powered mill. Description Mill ponds were often created through the construction of a mill dam or weir (and mill stream) across a waterway. In many places, the com ...

dam on the Assabet River and converted the former

sawmill A sawmill (saw mill, saw-mill) or lumber mill is a facility where logs are cut into lumber. Modern sawmills use a motorized saw to cut logs lengthwise to make long pieces, and crosswise to length depending on standard or custom sizes (dimensi ...

to a

powder mill A powder mill was a mill where gunpowder is made from sulfur, saltpeter and charcoal. Milling steps Crude grinding and mixing operations such as the Frankford Powder-Mill of Philadelphia were a cottage industry until the industrial revolution ...

in 1835. Pratt sold the mill to the American Powder Company in 1864. The mill manufactured of gunpowder per day through the

American civil war The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...

. In 1872 American Powder Company joined the United States Gunpowder Trade Association, popularly known as the powder trust, with

Austin Powder Company Austin Cartridge Company was an Austin Powder Company subsidiary manufacturing cartridge ammunition for small arms. The company made shotgun shells and rimfire cartridges from 1895 until purchased by Western Cartridge Company in 1907. History A ...

DuPont DuPont de Nemours, Inc., commonly shortened to DuPont, is an American multinational chemical company first formed in 1802 by French-American chemist and industrialist Éleuthère Irénée du Pont de Nemours. The company played a major role in ...

Hazard Powder Company The Hazard Powder Company is a former American manufacturer of gunpowder and explosives. It was located in Hazardville within the town of Enfield, Connecticut. History The company was founded on the Scantic River in 1835 by Allen Loomis in a ...

Laflin & Rand Powder Company Laflin & Rand Powder Company was a gunpowder and early smokeless powder manufacturer notable for producing the smokeless powder used by United States Army infantry rifles from 1896 to 1908, which included the period of development of the M1903 Spri ...

Miami Powder Company Miami Powder Company operated a gunpowder manufacturing complex on the Little Miami River at Goes Station, Ohio from 1855 to 1925. Willows growing along the banks of the Little Miami River provided the charcoal required for gunpowder. Production ...

, and

Oriental Powder Company Oriental Powder Company was a gunpowder manufacturer with mills located on the Presumpscot River in Gorham and Windham, Maine. The company was one of the four largest suppliers to Union forces through the American Civil War. History The Presumpsc ...

. American Powder Company reorganized as American Powder Mills in 1883 with business offices in

Boston Boston (), officially the City of Boston, is the state capital and most populous city of the Commonwealth of Massachusetts, as well as the cultural and financial center of the New England region of the United States. It is the 24th- mo ...

. The facility was sold to

American Cyanamid American Cyanamid Company was a leading American conglomerate which became one of the nation's top 100 manufacturing companies during the 1970s and 1980s, according to the Fortune 500 listings at the time. It started in fertilizer, but added ...

in 1929, with gunpowder production continuing to 1940. In addition to black powder for blasting and other purposes, APM made smokeless gunpowder for shotgun-using hunters under the brand name "Dead Shot." Newspaper reports record a number of deadly accidents at the facility. The first explosion, in 1836, in the first year of operation, killed four men.

Henry David Thoreau Henry David Thoreau (July 12, 1817May 6, 1862) was an American naturalist, essayist, poet, and philosopher. A leading Transcendentalism, transcendentalist, he is best known for his book ''Walden'', a reflection upon simple living in natural su ...

's journal records his observations of another explosion killing three men in 1853. Five men were killed in May 1895 explosion. While the plant was manufacturing gunpowder for the

Russian Empire The Russian Empire was an empire and the final period of the Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended the Great Northern War. ...

during World War I, a September 4, 1915 explosion was heard as far away as Lowell and Boston. The last three explosions in 1940 ended gunpowder production, and the property passed into

W. R. Grace and Company W. R. Grace and Co. is an American chemical business based in Columbia, Maryland. It produces specialty chemicals and specialty materials in two divisions: Grace Catalysts Technologies, which makes catalysts and related products and technologies ...

ownership. The Assabet River dam at the original mill pond site is being used to generate

hydroelectricity Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other Renewabl ...

for municipal Concord. The body of water created by the dam goes by the name Ripple Pond, and is located in Acton and Maynard.

References

{{Reflist Ammunition manufacturers Explosives manufacturers Gunpowder mills Manufacturing companies based in Boston