The Boyd and Parker ambush was a minor military engagement in what is now Groveland, New York on September 13, 1779, during the American Revolutionary War.

That night, Lieutenant Thomas Boyd received orders to organize a scouting party to locate and reconnoiter Chenussio.

[2] Meanwhile, about 400 Rangers and allied warriors were preparing to ambush the vanguard of Sullivan's army as it emerged from the marshy area south of Conesus Lake, unaware that Boyd's patrol had unknowingly passed them in the night.

The bodies of Boyd and Parker were discovered by Sullivan's forces on September 14, and the men were buried with full military honors.

[7] One name on the memorial, Corporal Calhoun, refers to a soldier who died of his wounds in a separate encounter the same day as the Boyd and Parker ambush.

[5] The remains of Boyd and Parker were left buried at the site of their deaths until 1841, when they were re-interred at Rochester's Mount Hope Cemetery in a ceremony attended by New York Governor William H.

[8] Today the Groveland Ambuscade Monument marks the site of the ambush inside a small park, which was listed on the National Register of Historic Places in 2009.