Cumberland and Knox Railroad

The Cumberland and Knox Railroad is a shortline railroad in the United States. It operates freight services over the Rockland Branch between Brunswick, Maine, and Rockland, Maine.

History

The previous operator of the Rockland Branch, Midcoast Railservice, ceased operations in 2024 after the closure of the line's primary customer, Dragon Cement. Maine selected Maine Switching Services as the new operator in January 2025.
Maine Switching Service announced the "Cumberland and Knox Railroad" name in April 2025, and service began on May 31, 2025. In October 2025, the CKRR purchased two passenger cars from the Adirondack Railroad, with plans to buy a third in the winter. The Midcoast Rail Heritage Trust, the operator of the Belfast & Moosehead Lake Railroad passenger services, plans to use these passenger cars alongside CKRR locomotives as a tourist train called the Pen Bay Scenic Railroad. This service is scheduled to open in 2026.