There were at this time, in consequence of Shirley's efforts, three forts at Oswego or Chouaguen, as the French called it. The old fort and trading house stood on the western bank of the Onondaga or Oswego river, where it enters the lake. On the same side of the river, about 600 yards to the westward, was a 'small unfinished redoubt, badly enough entrenched with earth on two sides.'[5] It was called a fort, and pompously named Fort George, but, as a matter of fact, it was used as, and was little better than, a cattle-pen. On the eastern side of the river, over against the old fort, at a distance of 470 yards, was a newly-built, square-shaped blockhouse, known as Fort Ontario. It was built wholly of timber; and, while strong enough to resist such firearms as Indians could bring, it was of no avail against artillery. [Footnote 5: See 'Papers relating to Oswego,' in O'Callaghan's _Documentary History of New York_, vol. i, pp. 488-503.] [Sidenote: _The French attack._] [Sidenote: _Oswego surrenders._] The French prepared to bombard this eastern fort, but, before their trenches were complete, it was evacuated, and the garrison was withdrawn across the river. The abandonment was inevitable, but it sealed the fate of the main fort, which, for protection on the lake and river side, depended on Fort Ontario. One day's fighting saw the conclusion of the matter. The French brought their guns into position by the side of the abandoned fort; and, firing across the river, riddled Fort Oswego. At the same time, Canadians and Indians forded the river higher up, and attacked on the southern side. The English commander, Colonel Mercer, was killed: the troops, consisting mainly of convalescents and recruits, were not in condition for a stubborn defence; women and children found no shelter from the enemy's fire; the position was hopeless, and the garrison surrendered. The prisoners, who were carried off, numbered about 1,600; guns, boats, and supplies fell into the hands of the French, the forts were burnt to the ground, and every vestige of British occupation was for the time obliterated. {257} [Sidenote: _Effect of the fall of Oswego._]