At the confluence of the Snake and Columbia rivers, this park occupies the site of Ainsworth, a railroad town that flourished from 1879 to 1884. It's named for the Shoshoni woman who guided the Lewis and Clark expedition over the Rocky Mountains and down the Snake River. The 284-acre day-use park has an interpretive center and a large display of Native American tools. A beach, boat launch, picnic area, and children's playground round out the facilities; sand dunes, marshes, and ponds are great for watching wildlife.
2503 Sacajawea Park Rd., Off U.S. 12, 5 miles southeast of Pasco, Pasco, Washington, 99301, United States