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1880
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| Map adapted from: The Lackawanna Railroad in Northwest New Jersey - Lowenthal/Greenberg |
In the 1870s a four mile extension from Hamburg to McAfee was built to the limestone and mineral deposits there. This ‘South Vernon branch’ was later sold to the burgeoning Lehigh & Hudson River Railroad in 1881 and is the only Sussex Railroad trackage still in use by trains today. This is the Sussex Branch at it's greatest length.