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Vicksburg National Military Park in Warren County, Mississippi — The American South (East South Central)
 

Thayer’s Approach

 
 
Thayer’s Approach Marker image. Click for full size.
By Mark Hilton, October 25, 2017
1. Thayer’s Approach Marker
Inscription. On May 22, 1863, Union troops commanded by General John M. Thayer stormed up this hill toward the Confederate fort at the top. Slowed by the steep terrain and pushed back by heavy enemy fire, Thayer's men were forced to withdraw. On May 30, the soldiers took up picks and shovels and began a sapping (trenching) operation to approach the fort on the hill.

Thayer's approach stretched out from here toward the hill, and then turned to meet a ridgeline running up the right side of the slope. Sappers dug their way along the ridge to the fort, and then began digging a mine under the wall. They planned to pack the mine with black powder and destroy the Confederate fort. The siege of Vicksburg ended before the approach was complete.

[Photo captions]
Tools of the Trade
Sapping tools included items made from local materials, designed to protect soldiers as they dug trenches.

Top right: A sap roller was moved along at the head of an advancing trench to protect the digging crew from enemy fire.


Middle right: Gabions, open-ended baskets filled with dirt, shored up trench walls.

Tightly bound bundles of brushwood called fascines stabilized the sides of a trench. Placed across the open top of a trench, they provided protection from musket
View of two markers titled Thayer’s Approach. image. Click for full size.
By Mark Hilton, October 25, 2017
2. View of two markers titled Thayer’s Approach.
fire.

Bottom right: The tunnel at the bottom of the stairs to your left provided safe passage under the exposed ridge and protected Union soldiers from sharpshooters in the Confederate fort. The tunnel was reinforced with brick after the war.

Bottom left: Soldiers digging an approach trench use a large sap roller for protection from enemy fire.

 
Erected by National Park Service, Department of the Interior.
 
Location. 32° 22.446′ N, 90° 51′ W. Marker is in Vicksburg National Military Park, Mississippi, in Warren County. Marker can be reached from Union Avenue 0.8 miles from Grant Avenue. Touch for map. Marker is at or near this postal address: Union Avenue, Vicksburg MS 39183, United States of America.
 
Other nearby markers. At least 8 other markers are within walking distance of this marker. Thayer's Approach. (here, next to this marker); U.S. Missouri (a few steps from this marker); Ohio 4th Battery, (approx. 0.2 miles away); U.S. 4th Battery, (approx. 0.2 miles away); U S Missouri 11th Infantry (approx. 0.4 miles away); Minnesota 5th Infantry (approx. half a mile away); Ohio Ninety Fifth Regiment (approx. half a mile away); "This is Murder!" (approx. half a mile away). Touch for a list and map of all markers in Vicksburg National Military Park.
 
Related marker.
View of one end of the tunnel. image. Click for full size.
By Mark Hilton, October 25, 2017
3. View of one end of the tunnel.
Click here for another marker that is related to this marker.
 
Also see . . .  Tour Stop 6 - Thayer's Approach at Vicksburg National Military Park. (Submitted on October 29, 2017, by Mark Hilton of Montgomery, Alabama.)
 
Categories. Forts, CastlesWar, US Civil
 
Union General John Milton Thayer image. Click for full size.
By Public domain (PD)
4. Union General John Milton Thayer
 
 
Credits. This page was last revised on October 29, 2017. This page originally submitted on October 29, 2017, by Mark Hilton of Montgomery, Alabama. This page has been viewed 60 times since then. Photos:   1, 2, 3, 4. submitted on October 29, 2017, by Mark Hilton of Montgomery, Alabama.
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