The land was donated to the State by the city of Pasco. The name of the park commemorates Sacajawea, the Native American woman who guided the Lewis and Clark expedition through the Rocky Mountains to the lower Snake River country.
Sacajawea State Park
Points of Interest 
Sacajawea State Park
Sacajawea State Park is southeast of Pasco north of the confluence of the Snake and Columbia rivers in south central Franklin County. The name is for the Shoshone Indian woman who accompanied the Lewis and Clark Expedition as the wife of Touissaint Charbonneau, a French-Canadian interpreter and guide. Her name has been spelled Sacajawea in most of the references to the expedition. The park is on a Lewis and Clark campsite where the expedition spent October 16–18, 1805.
Ainsworth
Ainsworth was a railroad construction town founded in late 1879 by the Northern Pacific Railroad as a base for the building a bridge across the Snake River. Its importance ended when rail traffic between Pasco and Tacoma started to move through the Stampede Tunnel in the Cascades, rather than via the Wallula route. Late in 1886 the county seat was moved to Pasco; the completion of the bridge across the Snake River and the elimination of a ferry contributed to the demise of the town. In 1906 when the SP and S Railroad was being built from Kennewick to Vancouver along the north bank of the Columbia River, Ainsworth revived briefly as a staging area for construction. It was named for Capt. J. C. Ainsworth, a prominent official of the Oregon Steam Navigation Company who once had a summer home near Tacoma.
Points of Interest
Sacajawea State Park
Sacajawea State Park is southeast of Pasco north of the confluence of the Snake and Columbia rivers in south central Franklin County. The name is for the Shoshone Indian woman who accompanied the Lewis and Clark Expedition as the wife of Touissaint Charbonneau, a French-Canadian interpreter and guide. Her name has been spelled Sacajawea in most of the references to the expedition. The park is on a Lewis and Clark campsite where the expedition spent October 16–18, 1805.
Ainsworth
Ainsworth was a railroad construction town founded in late 1879 by the Northern Pacific Railroad as a base for the building a bridge across the Snake River. Its importance ended when rail traffic between Pasco and Tacoma started to move through the Stampede Tunnel in the Cascades, rather than via the Wallula route. Late in 1886 the county seat was moved to Pasco; the completion of the bridge across the Snake River and the elimination of a ferry contributed to the demise of the town. In 1906 when the SP and S Railroad was being built from Kennewick to Vancouver along the north bank of the Columbia River, Ainsworth revived briefly as a staging area for construction. It was named for Capt. J. C. Ainsworth, a prominent official of the Oregon Steam Navigation Company who once had a summer home near Tacoma.
