The river Sorel issues from the north end of Lake Champlain and throws its superfluous waters into the St. Lawrence. Lake Champlain is about eighty miles long from north to south, and about fourteen miles broad where it is widest. Crown Point stands at what may properly be considered the south end of the lake, although a narrow channel, which retains the name of the lake, proceeds southward and forms a communication with South river and the waters of Lake George.
Ticonderoga is on the west side of the narrow channel, twelve miles south from Crown Point. It is a rocky angle of land, washed on three sides by the water and partly covered on the fourth side by a deep morass. On the space on the northwest quarter, between the morass and the channel, the French had formerly constructed lines of fortification, which still remained, and those lines the Americans had strengthened by additional works.
Opposite Ticonderoga on the east side of the channel, which is here between three and four hundred yards wide, stands a high circular hill called Mount Independence, which had been occupied by the Americans when they abandoned Crown Point, and carefully fortified. On the top of it, which is flat, they had erected a fort and provided it sufficiently with artillery. Near the foot of the mountain, which extends to the water's edge, they had raised entrenchments and mounted them with heavy guns, and had covered those lower works by a battery about half way up the hill.
With prodigious labor they had constructed a communication between those two posts by means of a wooden bridge which was supported by twenty-two strong wooden pillars placed at nearly equal distances from each other. The spaces between the pillars were filled up by separate floats, strongly fastened to each other and to the pillars by chains and rivets. The bridge was twelve feet wide and the side of it next Lake Champlain was defended by a boom formed of large pieces of timber, bolted and bound together by double iron chains an inch and a half thick. Thus an easy communication was established between Ticonderoga and Mount Independence and the passage of vessels up the strait prevented.
Immediately after passing Ticonderoga the channel becomes wider and, on the southeast side, receives a large body of water from a stream at that point called South river, but higher up named Wood creek. From the southwest come the waters flowing from Lake George, and in the angle formed by the confluence of those two streams rises a steep and rugged eminence called Sugar Hill, which overlooks and commands both Ticonderoga and Mount Independence. That hill had been examined by the Americans, but General St. Clair, considering the force under his command insufficient to occupy the extensive works of Ticonderoga and Mount Independence and flattering himself that the extreme difficulty of the ascent would prevent the British from availing themselves of it, neglected to take possession of Sugar Hill. It may be remarked that the north end of Lake George is between two and three miles above Ticonderoga, but the channel leading to it is interrupted by rapids and shallows and is unfit for navigation. Lake George is narrow, but is thirty-five miles long, extending from northeast to southwest. At the head of it stood a fort of the same name, strong enough to resist an attack of Indians, but incapable of making any effectual opposition to regular troops. Nine miles beyond it was Fort Edward on the Hudson.
On the appearance of Burgoyne's van St. Clair had no accurate knowledge of the strength of the British army, having heard nothing of the reinforcement from Europe. He imagined that they would attempt to take the fort by assault and flattered himself that he would easily be able to repulse them. But, on the 2d of July, the British appeared in great force on both sides of the channel and encamped four miles from the forts, while the fleet anchored just beyond the reach of the guns. After a slight resistance Burgoyne took possession of Mount Hope, an important post on the south of Ticonderoga, which commanded part of the lines of that fort as well as the channel leading to Lake George, and extended his lines so as completely to invest the fort on the west side. The German division under General Riedesel occupied the eastern bank of the channel and sent forward a detachment to the vicinity of the rivulet which flows from Mount Independence. Burgoyne now labored assiduously in bringing forward his artillery and completing his communications. On the 5th of the month (July, 1777) he caused Sugar Hill to be examined, and being informed that the ascent, though difficult, was not impracticable, he immediately resolved to take possession of it and proceeded with such activity in raising works and mounting guns upon it that his battery might have been opened on the garrison next day.
These operations received no check from the besieged, because, as it has been alleged, they were not in a condition to give any. St. Clair was now nearly surrounded. Only the space between the stream which flows from Mount Independence and South river remained open, and that was to be occupied next day.
In these circumstances it was requisite for the garrison to come to a prompt and decisive resolution, either at every hazard to defend the place to the last extremity or immediately to abandon it. St. Clair called a council of war, the members of which unanimously advised the immediate evacuation of the forts, and preparations were instantly made for carrying this resolution into execution. The British had the command of the communication with Lake George, and consequently the garrison could not escape in that direction. The retreat could be effected by the South river only. Accordingly the invalids, the hospital, and such stores as could be most easily removed, were put on board 200 boats and, escorted by Colonel Long's regiment, proceeded, on the night between the 5th and 6th of July, up the South river towards Skeenesborough. The garrisons of Ticonderoga and Mount Independence marched by land through Castleton, towards the same place. The troops were ordered to march out in profound silence and particularly to set nothing on fire. But these prudent orders were disobeyed, and, before the rear guard was in motion, the house on Mount Independence, which General Fermoy had occupied, was seen in flames. That served as a signal to the enemy, who immediately entered the works and fired, but without effect, on the rear of the retreating army.
The Americans marched in some confusion to Hubbardton whence the main body, under St. Clair, pushed forward to Castleton. But the English were not idle. General Fraser, at the head of a strong detachment of grenadiers and light troops, commenced an eager pursuit by land upon the right bank of Wood creek: General Riedesel, behind him, rapidly advanced with his Brunswickers, either to support the English or to act separately as occasion might require. Burgoyne determined to pursue the Americans by water. But it was first necessary to destroy the boom and bridge which had been constructed in front of Ticonderoga. The British seamen and artificers immediately engaged in the operation, and in less time than it would have taken to describe their structure, those works which had cost so much labor and so vast an expense, were cut through and demolished. The passage thus cleared, the ships of Burgoyne immediately entered Wood creek and proceeded with extreme rapidity in search of the Americans. All was in movement at once upon land and water. By three in the afternoon the van of the British squadron, composed of gunboats, came up with and attacked the American galleys near Skeenesborough Falls. In the meantime three regiments which had been landed at South bay, ascended and passed a mountain with great expedition, in order to turn the retreating army above Wood creek, to destroy the works at the Falls of Skeenesborough, and thus to cut off the retreat of the army to Fort Anne. But the Americans eluded this stroke by the rapidity of their march. The British frigates having joined the van, the galleys, already hard pressed by the gunboats, were completely overpowered. Two of them surrendered; three of them were blown up. The Americans having set fire to their boats, mills, and other works, fell back upon Fort Anne, higher up Wood creek. All their baggage, however, was lost and a large quantity of provisions and military stores fell into the hands of the British.
The pursuit by land was not less active. Early on the morning of the 7th of July (1777) the British overtook the American rear guard who, in opposition to St. Clair's orders, had lingered behind and posted themselves on strong ground in the vicinity of Hubbardton. Fraser's troops were little more than half the number opposed to him, but aware that Riedesel was close behind and fearful lest his chase should give him the slip, he ordered an immediate attack. Warner opposed a vigorous resistance, but a large body of his militia retreated and left him to sustain the combat alone, when the firing of Riedesel's advanced guard was heard and shortly after his whole force, drums beating and colors flying, emerged from the shades of the forest and part of his troops immediately effected a junction with the British line. Fraser now gave orders for a simultaneous advance with the bayonet which was effected with such resistless impetuosity that the Americans broke and fled, sustaining a very serious loss. St. Clair, upon hearing the firing, endeavored to send back some assistance, but the discouraged militia refused to return and there was no alternative but to collect the wrecks of his army and proceed to Fort Edward to effect a junction with Schuyler.