Washington is located in the Pacific Northwest and borders both the Pacific Ocean and Canada. Much of the terrain consists of rugged mountain ranges. Agriculture is a major industry in the state, which also boasts an extremely busy international port. Heavy snows during the winter can close some mountain passes, making some roads difficult to travel during these months. An extended network of waterways allows for Washington freight to move by water when possible. Most rail lines also connect to the busy ports, allowing for Washington shipping rates to remain low and reasonable. LTL freight is usually affordable due to the volume of goods moving through the state.