"Monument at Groton. This is a view from the southwest angle of old Fort Griswold, looking northeast. The embankments of the fort are seen in the foreground; near the figure is the well, the same mentioned by Mr. Hempstead in his narrative; and just beyond this is the old entrance, or sally-port, through which the enemy, under Broomfield, entered the fort."—Lossing, 1851
It is dedicated to the defenders who fell during the Battle of Groton Heights on September 6, 1781. Built between 1826 and 1830, the Monument stands 135 feet tall with 166 steps. A plaque affixed to the monument above the entrance reads "THIS MONUMENT WAS ERECTED UNDER THE PATRONAGE OF THE STATE OF CONNECTICUT, A.D. 1830, AND IN THE 55TH YEAR OF THE INDEPENDENCE OF THE U.S.A. IN MEMORY OF THE BRAVE PATRIOTS, WHO FELL IN THE MASSACRE AT FORT GRISWOLD, NEAR THIS SPOT, ON THE 6TH OF SEPT. A.D. 1781, WHEN THE BRITISH, UNDER THE COMMAND OF THE TRAITOR, BENEDICT ARNOLD, BURNT THE TOWNS OF NEW LONDON AND GROTON, AND SPREAD DESOLATION AND WOE THROUGHOUT THIS REGION."