Duluth is a city located in northeastern Minnesota, on the westernmost point of Lake Superior. It is known as the "Gateway to the Great Lakes" and is a major port for freight transportation. The city's port is the largest on the Great Lakes, handling over 35 million tons of cargo annually. Duluth's strategic location on Lake Superior has made it a hub for shipping goods such as iron ore, coal, grain, and timber.

The history of freight transportation in Duluth dates back to the late 19th century when the city became a key player in the iron ore industry. The discovery of vast iron ore deposits in the Mesabi Range, located just west of Duluth, led to a boom in mining and shipping. The city's harbor was expanded to accommodate larger ships, and railroads were built to transport the iron ore from the mines to the port. Today, Duluth continues to be a major center for the shipping industry, with a diverse range of cargo passing through its port.

Grand Rapids is the second-largest city in Michigan and is known for its vibrant art scene, craft breweries, and outdoor recreational opportunities. The city is located on the Grand River, which played a significant role in the transportation of goods in the past. In the 19th century, Grand Rapids became a major hub for the logging industry, with logs being floated down the river to the city's mills. The river also provided a means of transportation for goods and materials, contributing to the city's growth and development.

Today, Grand Rapids continues to be an important transportation hub, with a well-connected network of highways, railroads, and an international airport. The city is strategically located within a day's drive of major markets in the Midwest, making it an ideal location for businesses involved in freight transportation and logistics. The Gerald R. Ford International Airport serves as a major cargo hub, handling a significant amount of air freight. The city is also served by several major railroads, including CSX Transportation and Norfolk Southern, which provide connections to other parts of the country.