This marker in the southern Berkshires identifies part of the route traditionally associated with Colonel Henry Knox’s winter transport of artillery from Lake Champlain to the American army outside Boston. The marker was installed long after the Revolution as one element in a commemorative trail. Later research adjusted portions of the mapped route in western Massachusetts, so it represents the broader corridor of the expedition rather than proof that every gun passed the marker’s exact modern position.

In November 1775, George Washington approved Knox’s proposal to retrieve cannon captured earlier that year at Fort Ticonderoga and Crown Point. The siege of Boston had reached a stalemate. American troops surrounded the town, but lacked enough heavy artillery to force the British army and fleet from their positions. Knox, a young Boston bookseller with a strong interest in military science, traveled north to organize the removal of the guns.

The train eventually included fifty-nine artillery pieces—cannon, mortars, howitzers, and coehorns—weighing roughly sixty tons. Knox’s crews hauled them on boats and sledges down Lake George and then overland through New York and Massachusetts. The work depended on oxen, horses, local teamsters, laborers, suitable snow, and frozen waterways. Thaws, weak ice, steep grades, broken equipment, and shortages of animals repeatedly delayed the expedition. Moving a single heavy cannon over primitive roads could require multiple teams and careful control on descents.

The Berkshire passage was among the most difficult sections. The route climbed from the Hudson Valley into western Massachusetts before continuing east through towns that supplied food, lodging, fresh teams, and assistance. Knox kept Washington informed and negotiated with civilians for the resources needed to keep the column moving. The expedition demonstrated that military logistics relied as heavily on local cooperation and improvisation as on formal orders.

The artillery reached the Boston area in early 1776. In March, Washington placed heavy guns on Dorchester Heights, commanding the town and harbor. British General William Howe judged the position too dangerous to leave unchallenged, but a planned assault was disrupted by weather. The British evacuated Boston on March 17.

The guns alone did not win the siege, and historians continue to examine the exact routes and numbers involved. Yet Knox’s achievement became an enduring symbol of practical ingenuity at the Revolution’s beginning. This marker links the Berkshire landscape to the relief of Boston hundreds of miles away. It commemorates not a battle at this roadside location, but the exhausting passage of men, animals, and artillery whose arrival gave Washington the means to alter the strategic balance.