The Cumberland and Knox Railroad (reporting mark CKRR) 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. The Maine Department of Transportation 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, and bought a 3rd coach in the winter of 2025. 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.
Roster + Locomotive detailsReporting markNumberBuilderTypeBuild dateHistoryStatusAssigned toNotesLTEX1555EMDGP9u1956Ex-DSSR 1555, nee-CP GP9 8618OperationalCumberland & Knox Railroad, Rockland, Maine.Owned by Larry's Truck and Electric (LTEX)1585EMDGP9u05/1955Ex-DSSR 1585, nee-CP GP9u 1585, nee-CP GP9 8533 Operational1802EMDGP28M1956Ex-BNSF 1504, nee-BN 1504, nee-BN GP9 1889, nee-NP 266OperationalSappi Paper, Skowhegan, ME.
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