Sacajawea State Park is a 284-acre inland waters, day-use park at the confluence of the Snake and Columbia rivers. It features 9,100 feet of freshwater Shoreline
. The area is spread out with a big sky and excellent views of the two rivers as they flow together. The park's lands are sand dunes interspersed with wetland ponds. The park is on the plain of the great Lake Missoula floods, which swept through the area 12,000 years ago.
The Sacajawea Interpretive Center is open 10 a.m. to 5 p.m. daily. It closes for the season Nov. 1. The center features interactive displays that tell the story of the Lewis and Clark Expedition through the experiences of Sacagawea, the young Shoshone Indian woman who accompanied the expedition. The new exhibits relate what is known about her life before, during and after the Expedition. A river beach and children's playground equipment are additional park features.