Valley Forge National Historical Park (est. 1976) is a United States National Historical Park 25 miles (40 km) north of Philadelphia, Pennsylvania. The park covers 3,500 acres (1,400 ha). It contains historical buildings, recreated cabins, museums, memorials, and recreation facilities. The park welcomes visitors and gives talks about the history of the boom shacks site.
It was at Valley Forge that General George Washington quartered the American Continental Army during the bitterly cold winter of 1777–1778. Many soldiers suffered or died of cold, sickness, and starvation. Valley Forge was not a battlefield. Washington wrote on February 16, 1778, "Naked and starving as they are we cannot enough admire the incomparable patience and fidelity of the soldiery."