Next to the flagpole in Fort Stevens, you will see a relief map of the fort. In the right corner of the map you will see Fort Massachusetts and how large of an addition to the fort the 1st Vermont constructed. An additional 11 cannon mounts were added to bring the total to 20 cannon for the fort.
Unlike the original nine cannon with a two mile range inside Fort Massachusetts, the new cannon that were added had an effective range of over four miles. Inside the fort seated on two of the gun platforms, also known as gun mounts, you will see replica 30-pounder Parrott rifles. Named after its inventor, Robert Parker Parrott, these cannon could hurtle bullet shaped projectiles well into Maryland at an invading army.
The large powder magazine to your left with the white doors was also built. It was used to protect gunpowder from rain and moisture. In addition to the back breaking work inside the fort, the 1st Vermont Heavy Artillery also constructed permanent barracks for the troops across Quackenbos Street, where the stone Church of the Nativity Rectory is located today.
In April 1863, Fort Massachusetts was renamed to Fort Stevens, named after Brigadier General Isaac Ingalls Stevens who was killed at the Battle of Chantilly in Virginia, on September 1, 1862. Prior to the Civil War Isaac Stevens had served as governor of the Washington Territory.
Walk back to the driveway. Make a left and walk toward the front of Fort Stevens. When you reach the end of the driveway, hit NEXT to continue.