Maine is the northernmost state on the Atlantic coast and shares a border with Canada. The rugged terrain consists of mountain ranges and dense forests, which produce large amounts of lumber. Most Maine shipping is accomplished by sea and by rail, and the sea port in Portland is one of the busiest on the coast. Maine freight shipping rates are usually quite inexpensive due to this critical freight hub, and international shipping is also quite affordable. Trucking is a less common method of shipping, but there is still a high volume of goods moving through the state, making LTL shipping reasonable affordable, particularly in the most populated areas.