Wilson's Creek National Battlefield is a historic site located in Missouri, commemorating the first major battle of the Civil War fought in the state on August 10, 1861. The battlefield preserves the landscape where Union and Confederate forces clashed, resulting in a significant Confederate victory. Visitors can explore various trails, view interpretive exhibits, and learn about the battle's impact on the war. The site also features a visitor center that provides educational resources and historical context, making it a valuable destination for those interested in American history and the Civil War.