McPherson and Oliver 1863, July - 1865 In the background is the "17 gun Union Battery"…In the foreground is shown the interior of the right flank defences of the rebel works…
Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s04333 (digital file from original item, front) LC-DIG-stereo-2s04333 (digital file from original item, back)
Photograph shows the "gopher holes" of Battery 11, known as the "Citadel," the southernmost battery at Port Hudson, after the siege.
