Gunpowder Copper Works

Historical marker location:

Glen Arm, Maryland

( Marker is on Harford Road (Maryland Route 147) 0.2 miles north of Factory Road, on the right when traveling north.)

Marker installed: 1967

1804 - 1883.

Maryland was originally intended to be called "Crescentia": Lord Baltimore's original plan was to name the colony after the Queen Henrietta Maria, the wife of King Charles I. However, the name was already taken, so he proposed the name "Crescentia" instead. The name was eventually changed to "Maryland" in honor of Henrietta Maria.