Thayer's Approach

Thayer's Approach (HM22CY)

Location: Vicksburg, MS 39183 Warren County
Country: United States of America

N 32° 22.446', W 90° 51'

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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
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.
Details
HM NumberHM22CY
Tags
Placed ByNational Park Service, Department of the Interior
Marker ConditionNo reports yet
Date Added Sunday, October 29th, 2017 at 7:02pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)15S E 702270 N 3583935
Decimal Degrees32.37410000, -90.85000000
Degrees and Decimal MinutesN 32° 22.446', W 90° 51'
Degrees, Minutes and Seconds32° 22' 26.76" N, 90° 51' 0" W
Driving DirectionsGoogle Maps
Area Code(s)601
Closest Postal AddressAt or near 812 Union Ave, Vicksburg MS 39183, US
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