(2006) Enlarge
 
Old Site Marker near the Third Louisiana Redan: Following Grant's order of May 26 to reduce Vicksburg by siege, Union forces began constructing an approach trench to the 3rd Louisiana Redan on the hill before you. On June 25, after tunneling beneath the fort, the Yankees exploded a charge of 2,200 pounds of powder under the Rebels. Union forces entered the resulting crater but failed to break through the reinforced Confederate position behind it, and finally fell back. A second mine was exploded in the same area on July 1, but no assault was made
 
Richard Edling photo