Defunct Michigan railroads

Class I freight-hauling railroad in the United States

Class I railroad in Canada and U.S.

American Class I railroad (1846-1968)

American Class I railroad (1914-1968)

rail system in the United States of America

Conrail , formally the Consolidated Rail Corporation, was the primary Class I railroad in the Northeastern United States between 1976 and 1999. The trade name Conrail is a portmanteau based on the company's legal name. It continues to do business as an asset management and network services provider in three Shared Assets Areas that were excluded from the division of its operations during its acquisition by CSX Corporation and the Norfolk Southern Railway.

Rail transport company

American Class I railroad (1968–1976)

defunct Class I railroad in the Midwest and Northwest of the U.S.

British-owned railway in Canada and New England

defunct American Class I railway

defunct American Class I railroad (1895–1976)

defunct American railway (1897–1961)

defunct American Class I railroad

US railroad established 1846