During the American Civil War, Confederate General John Hunt Morgan crossed at Brandenburg to start his Raid into Indiana in July 1863.

During the American Civil War, Confederate General John Hunt Morgan conducted daring raids through the Green River country, from which he reached into southern Indiana and Ohio.

During the American Civil War, Confederate General Thomas Stonewall Jackson, a former instructor at VMI, used Crozet's tunnel to transfer his " foot cavalry " ( in modern times, this would be known as a rapid deployment force ) from the Shenandoah Valley to the east side of the Blue Ridge quickly, to the puzzlement and consternation of Union military leaders.

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