Putting the Rock Into the War-- Part 1

From March 17, 2016, Science Codex "How rocks shaped the Civil War."

Gettysburg is the most studied battleground of the war and its terrain is due to a mixture of harder igneous and softer sediments in landforms such as Cemetery Hill and Little Round Top.  These were two major defensive positions of the Union Army.

Carbonates like limestone provided defensive positions in battles in both the eastern and western theaters of the war.

Limestone and dolostones form the terrain of the battlefields at Antietam, Stones River, Chickamauga,  Franklin, Nashville and Monocacy.

Rolling.  --Old Secesh