What waterway did continental forces use to reach Yorktown?

Continental forces used the York River to reach Yorktown during the Siege of Yorktown in 1781. This strategic waterway allowed the combined American and French forces to transport troops and supplies effectively, facilitating the siege against British General Cornwallis's forces. The successful use of the York River played a crucial role in the eventual victory at Yorktown, leading to the end of the Revolutionary War.