Dayton, Washington
US-12 West - Walla Walla County
Entering Walla Walla County on US-12 west.
End WA-261 at US-12
End WA-261 east at US-12. Turn left for US-12 east to Lewiston (Idaho); turn right for US-12 west to Walla Walla.
End WA-261 East at US-12
End WA-261 East at US-12 in Columbia County.