The Founding of Maryland

The Lord's Baltimore

Historical Figures From Maryland

Maryland's Historical Sites and other Places of Interest

Historical African American Figures From Maryland

History of the State Flag

Great Seal of Maryland

Former Great Seals of Maryland

Official State Symbols

Maryland's County Seals

Maryland's Firsts

Maryland's Governor's 1634 to Present Day

Maryland's County Establishment

Maryland's County Seats

Maryland State Parks and Forests

Maryland's Regions

Maryland's Population

Fort Frederick and the French and Indian War

The Maryland Men Who Signed the Declaration of Independence

The Peggy Stewart

Civil War Battles in Maryland

The Baltimore Colts

Anne Wolseley Calvert

Everything Beatles!

About Famous People!

Gunpowder Copper Works

Location:

Glen Arm

MD 147 (Harford Road), 0.3 miles north of Factory Road

Coordinates:

N39 25 21.72

W76 29 45.30

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Photograph & article copyright © John T. Marck. All Rights Reserved. This photograph and article may not be resold, reprinted, or redistributed for compensation of any kind.