original_query: What were the steamboat landings and collection points on the Columbia river?
query: What were the steamboat landings and collection points on the Columbia River for the Inland Empire Boat & Truck Company?
answer: The Inland Empire Boat & Truck Company's steamboat landings and collection points on the Columbia River were Kennewick, Pasco, Wallula, Umatilla, Blalock, and Rufus. No stops for freight were made west of the Celilo Canal.