Washington State Park Camping Area in Missouri is located in St. Francois County and offers picturesque views of the surrounding landscapes, including the Big River and the Ozark Mountains. Nearby points of interest include the historic town of Potosi, which is known for its antique shops, wineries, and museums. The area is also home to the Missouri Mines State Historic Site, which offers tours of an old lead mine.

The campground amenities include fire pits, picnic tables, and access to clean drinking water. There are 89 campsites available, with some offering electric hookups. The campsites are available on a first-come-first-serve basis, so it's important to arrive early to secure a spot.

An interesting fact about the area is that it was once used as a mining site for lead, zinc, and iron. Today, visitors can still see remnants of the mining operations, such as old mine shafts and equipment.

The best time of year to visit the Washington State Park Camping Area is during the fall, when the temperatures are mild and the foliage is at its peak. The average temperature during this time of year is around 60 degrees Fahrenheit.