"The March to Valley Forge," by William Trego (1883).
With the Crown Forces completely in control of Philadelphia and its immediate environs , Washington sought a winter encampment from which he could keep an eye on the British. This well known painting depicts the march into Valley Forge, which the Americans reached on December 19th. Washington and his senior officers set up headquarters in existing homes while the men built crude log huts as they faced the heroic winter of 1777-1778 at Valley Forge.
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Museum of the American Revolution