This marker traces the route followed by Henry Knox and the heavy artillery train he brought from Fort Ticonderoga and Crown Point to the Continental Army outside Boston during the winter of 1775–1776. Washington’s forces had maintained a siege since the fighting at Lexington and Concord, but they lacked enough cannon and mortars to threaten the British position effectively. Knox proposed moving the captured Lake Champlain guns overland, and Washington authorized the mission.

Knox selected fifty-nine artillery pieces of different sizes and types. Transporting them required boats, sledges, oxen, horses, ropes, chains, and repeated local assistance. The guns moved down Lake George before being loaded onto sledges for the journey through the Hudson Valley, Berkshire Mountains, and Massachusetts countryside. Their enormous weight strained animals and equipment. Ice broke, snow conditions changed, and steep grades required extra teams and careful control.

The MA-19 marker identifies one segment of this route. It does not mark a battle or necessarily a place where Knox slept. Its historic event was passage. Teamsters and soldiers moved slowly through the winter landscape, drawing attention wherever the unusual column appeared. Inns, farms, blacksmith shops, bridges, and road crews all became part of the supply system.

Knox’s leadership combined persistence with practical improvisation. He negotiated for animals, organized recoveries when cannon fell through ice, and maintained records as the expedition advanced. The train reached the Boston area by late January 1776. The guns were then positioned and prepared while Washington considered how to use them without wasting scarce powder.

On the night of March 4–5, Continental troops fortified Dorchester Heights overlooking Boston and the harbor. The operation was conducted rapidly, using prefabricated materials and large quantities of fascines and bales. Heavy artillery made the new position a grave threat to British ships and troops. General William Howe prepared an assault but ultimately decided to evacuate. The British departed on March 17.

Boston’s liberation transformed a difficult transportation mission into a strategic victory. The cannon captured in one theater had been applied in another, demonstrating the value of continental coordination. The achievement also launched Knox’s rise as the army’s leading artillery officer.

The series of trail markers allows visitors to understand the expedition across a landscape too large for a single historic site. Each marker represents labor rather than combat: men and animals hauling iron and brass one difficult mile at a time. MA-19 preserves this community’s place in the chain. Without every portion of the route, the guns could not have reached Dorchester Heights, and the siege might have continued at great cost.