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MARKER DATABASE
“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Near Germantown in Montgomery County, Maryland — The American Northeast (Mid-Atlantic)
 

How the Mill Worked

 
 
How the Mill Worked Marker image. Click for full size.
By Devry Becker Jones, March 30, 2019
1. How the Mill Worked Marker
Inscription.  Black Rock Mill was powered by a water wheel. Water falling onto the wheel from above caused the wheel to rotate. The turning wheel powered a millstone.

The millstone had two parts: a moving top stone, and a fixed bottom stone. Both stones had grooves cut in their faces. As the top stone turned the grooves crossed like scissor blades, cracking the wheat and extracting the germ. An elaborate system of hoists and belts, also powered by the water wheel, fed raw grain to the millstones. Flour was collected below the stones and lifted to the top of the mill for drying, then packed for shipment.

The wheel could also power a massive woodcutting saw. A cradle fed logs into the saw, which cut them into boards.
 
Erected by Maryland Park Service.
 
Location. 39° 7.631′ N, 77° 18.877′ W. Marker is near Germantown, Maryland, in Montgomery County. Marker can be reached from Black Rock Road north of Grey Pebble Way, on the left when traveling north. Touch for map. Marker is at or near this postal address: 16500 Black Rock Road, Germantown MD 20874, United States of America. Touch for directions.
 
Other nearby markers. At least 8 other markers are
Black Rock Mill image. Click for full size.
By Devry Becker Jones, March 30, 2019
2. Black Rock Mill
within 2 miles of this marker, measured as the crow flies. A Mixed Community (here, next to this marker); Black Rock Mill and Great Seneca Creek (within shouting distance of this marker); White’s Ferry (approx. 1½ miles away); Darnestown (approx. 1.8 miles away); The Signal Corps and Wartime Communications (approx. 2.1 miles away); The Civil War in Darnestown (approx. 2.1 miles away); Civil War Troops & Darnestown Residents (approx. 2.1 miles away); Darnestown: A Strategic Point of Defense (approx. 2.1 miles away). Touch for a list and map of all markers in Germantown.
 
Categories. Industry & Commerce
 
More. Search the internet for How the Mill Worked.
 
Credits. This page was last revised on March 31, 2019. This page originally submitted on March 30, 2019, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 76 times since then. Photos:   1, 2. submitted on March 30, 2019, by Devry Becker Jones of Washington, District of Columbia.
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