Crown Point

Fire Destroys Crown Point Fortification

On April 21, 1773, a fire destroyed most wooden structures within the Crown Point fortification, leaving the stone outer walls but gutting the barracks and interior buildings. The British never fully rebuilt it. When Americans seized the fort in 1775 they found a damaged installation — it served as a staging point and supply depot rather than a fully garrisoned defensive fortification of the kind it had been during the Seven Years' War.

Seth Warner Seizes Crown Point

On May 12, 1775, two days after Allen's seizure of Ticonderoga, Seth Warner led a party to Crown Point where the nine-man British garrison offered no resistance. The combined seizures gave Americans control of the Lake Champlain corridor and access to over a hundred pieces of artillery, including the heavy guns Henry Knox hauled to Boston to force the British evacuation in March 1776.

American Canada Invasion Stages Through Crown Point

Through summer and fall 1775, Crown Point served as a staging point for the American invasion of Canada — the attempt to bring Quebec into the Revolution as a fourteenth colony. Montgomery moved north through Crown Point and Ticonderoga, capturing Montreal in November 1775. The invasion ultimately failed at Quebec City on December 31, where Montgomery was killed and Arnold's assault was repulsed.

Knox Transports Crown Point and Ticonderoga Cannon to Boston

In November 1775, Washington sent Henry Knox north to retrieve the captured artillery. Knox oversaw the movement of approximately sixty tons of cannon and mortars across frozen Lake George and the Berkshire Mountains to Boston. Washington used the guns to occupy Dorchester Heights on March 4–5, 1776, threatening the British fleet in Boston Harbor and forcing the British evacuation on March 17. Without Crown Point's artillery, the Boston siege had no resolution.

Shattered American Army Retreats from Canada to Crown Point

Through spring and summer 1776, the remnants of the American Canada expedition retreated south down Lake Champlain, weakened by smallpox, dysentery, and defeat. Crown Point and Ticonderoga became focal points of the effort to stop the British advance before it penetrated the Hudson Valley. The garrison that reached Crown Point was a shadow of the force that had departed the previous year.

Arnold Builds the American Lake Champlain Fleet

In summer 1776, Benedict Arnold oversaw construction of an improvised fleet at Skenesborough (now Whitehall, NY), using Crown Point as his northern anchor. Built from green timber by carpenters who had never constructed a warship, the fleet could not match the purpose-built British vessels being assembled at the northern end of the lake. But its existence forced the British to build their own fleet and transport it overland in pieces — a process consuming months of campaign season.

Battle of Valcour Island: Arnold's Fleet Destroyed

On October 11–13, 1776, Arnold's fleet engaged the larger British fleet near Valcour Island south of present-day Plattsburgh. The Americans were heavily outgunned. Arnold's flagship Congress was burned; most of the fleet was destroyed or captured. Arnold escaped with one vessel. By conventional measure it was an American defeat. Strategically it was the opposite: the engagement and preceding construction delays consumed enough of the British campaign season that the invasion of New York could not be completed before winter. The British halted at Crown Point in late October and withdrew to Canada.

Burgoyne Reoccupies Crown Point in Advance on Ticonderoga

In late June 1777, Burgoyne's army advancing south from Canada reoccupied Crown Point as a staging point for the assault on Fort Ticonderoga. Ticonderoga fell on July 6, largely because British forces occupied the high ground of Mount Defiance that American engineers had deemed inaccessible. The advance seemed to confirm the northern theater was collapsing.

Saratoga Campaign Ends at British Surrender

On October 17, 1777, Burgoyne surrendered approximately 5,700 men to Gates at Saratoga — the direct consequence of the chain beginning at Valcour Island. Arnold's fleet had delayed the 1776 invasion; the delay allowed American forces to rebuild; the rebuilt army defeated Burgoyne in two engagements (Arnold was wounded at Bemis Heights). The surrender brought France into the war as an American ally, transforming the conflict into one Britain could not sustain.

French Alliance Reshapes the Northern Theater

The French alliance signed February 6, 1778 — made possible by Saratoga — transformed the strategic situation in the northern theater. The northern invasion strategy driving the fighting around Crown Point and Lake Champlain since 1775 was effectively abandoned after Burgoyne's surrender. The lake corridor became a defensive concern rather than an active theater, and Crown Point's period of maximum military significance came to a close.