Fort Washington State Park is a 493acre Pennsylvania state park in Springfield and Whitemarsh Townships, Montgomery County, Pennsylvania in the United States. The park is noted for the springtime flowering of dogwood trees, and is popular with families for picnics and hiking. It is approximately north of Philadelphia, from exit 339 of the Pennsylvania Turnpike.HistoryBoth Fort Washington State Park and the neighboring town are named for American defenses and encampment established here in 1777, during the Philadelphia campaign of the American Revolutionary War. After Washington's defeat at the Battle of Germantown, his 11,000 troops where encamped in this area from November 11, 1777 to December 11, 1777, after which time they marched to Valley Forge for winter quarters. From December 5–8, 1777, the Battle of White Marsh was fought in the immediate vicinity. The park's Fort Hill marks the spot where a temporary fort once stood. The Pennsylvania Militia (under Generals Armstrong, Cadwalader and Irvine) held positions on what is today called Militia Hill.