Airports are located in Walla Walla (11 miles east of park), Pasco (45 miles west), and Pendleton, Oregon (45 miles south).
Driving directions from Walla:
Did You Know?
The mission at Waiilatpu had a sawmill supplying it with needed cut lumber. It was located in the Mill Creek drainage. Lumber was needed for the split rail fences and finishing the houses built at the mission.