St. Mary's City in St. Mary's County, Maryland — The American Northeast (Mid-Atlantic)
Fear of War, People of Peace
When Maryland's first settlers arrived in 1634 they expected to encounter trouble, both from local American Indians and from rival English colonists across the Potomac River in Virginia.
To assure a place of safety they built a fort at St. Mary's City armed with cannons sent by Lord Baltimore on the Ark. Archaeologists have not yet pinpointed the location of the fort, but this iron cannon may have been used there. It was discovered under the water of the St. Mary's River in 1824.
Although there were periodic conflicts with Virginians, there is no evidence to suggest that the fort was used as a place of refuge or defense.
" we have seated ourvelues, within one half mile of the riuer, with a pallizado of one hundred and twenty yarde square with fouer flankes, we have mounted one peece of ordinance a fortification (we think) sufficient to defend against any such weake enemies we have reason to expect here."
Leonard Clavert, May 30, 1634
[Captions:]
This iron cannon was found in the St. Mary's River in 1824 and was put on display in St. Mary's City in 1934 as part of the Tercentennial celebration.
Seventeenth-century cannonball from St. Mary's City shown with an illustration of a cannon called a demiculvern. We know Lord Baltimore sent demiculverns with the original expedition when they departed England in 1633.
Erected by Historic St. Mary's City.
Topics. This historical marker is listed in these topic lists: Colonial Era • Forts and Castles • Settlements & Settlers. A significant historical year for this entry is 1634.
Location. 38° 11.028′ N, 76° 25.846′ W. Marker is in St. Mary's City, Maryland, in St. Mary's County. It is on Point Lookout Road (Maryland Route 5) west of Mattapany Road, on the left when traveling north. Touch for map. Marker is at or near this postal address: 18751 Hogaboom Ln, Saint Marys City MD 20686, United States of America. Touch for directions.
Regionally, this marker is in Southern Maryland. It is also in the American South, specifically in the Upper South, in the Mid-Atlantic, in the Tidewater, in the Chesapeake Bay Region, and on the Eastern Seaboard. Globally, it is in the North Atlantic Region, North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once one of the original Thirteen Colonies and also the Antebellum South.
Other nearby markers. At least 8 other markers are within walking distance of this marker: A Land in Need of Labor (within
Other markers no longer nearby. Fear of War, People of Peace (has been replaced with this marker); "a lande, even as God made it" (was about 600 feet away but has been replaced with another marker now near it).
Credits. This page was last revised on April 16, 2026. It was originally submitted on April 16, 2026, by Devry Becker Jones of Washington, District of Columbia. This page has been viewed 11 times since then. Photos: 1, 2. submitted on April 16, 2026, by Devry Becker Jones of Washington, District of Columbia.

