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.

Fairfield, Ohio, located in Butler County, is a vibrant city with a rich history. Originally settled by German immigrants in the early 1800s, Fairfield quickly grew into a prosperous farming community. In the late 19th century, the arrival of the railroad transformed the city into an important transportation hub. Today, Fairfield continues to benefit from its strategic location, with easy access to major highways and the Cincinnati/Northern Kentucky International Airport.

Freight transportation plays a significant role in Fairfield's economy. The city is home to several distribution centers and logistics companies, taking advantage of its proximity to major transportation routes. The Fairfield Trucking Association, established in the 1950s, has been instrumental in promoting the growth of the freight industry in the area. The association organizes events and provides resources for trucking companies, fostering a thriving transportation community in Fairfield.