Steptoe Battlefield State Park Heritage Site, State park heritage site in Rosalia, Washington, United States

Steptoe Battlefield State Park Heritage Site is a three-acre (1.2 ha) heritage site on the southeast side of Rosalia, Whitman County, Washington. It memorializes the 1858 Battle of Pine Creek, a running battle between U.S. soldiers under Lt. Col. Edward Steptoe and a band of Spokane, Palouse and Coeur d'Alene fighters. Interpretive signs describe the course of the battle.

The park commemorates the Battle of Pine Creek, fought in 1858 when Lt. Col. Edward Steptoe's soldiers met a large band of Spokane, Palouse and Coeur d'Alene fighters. In 1914 the Esther Reed Chapter of the Daughters of the American Revolution set a stone monument where the troops made their final stand. The monument site became a state park in 1950, joined the National Register of Historic Places in 1976, and was named a state park heritage site in 2014.

The battlefield's name comes from Lt. Col. Edward Steptoe, whose troops made their final stand here in 1858. The site is on the southeast edge of Rosalia, and interpretive signs at the park describe the course of the running battle. The land around it is farmland, and the town lies just under a kilometre to the north.

The park sits in open terrain with limited shelter, so visitors should come prepared for changing weather. There are no facilities on-site, so bringing what you need is practical.

The stone monument at the site was erected in 1914 by the Esther Reed Chapter of the Daughters of the American Revolution, near where Steptoe's troops made their final stand. The three-acre grounds became a state park in 1950 and were listed on the National Register of Historic Places in 1976.