• Contours of Union forts on south side of Potomac, 1862 [map].

    Contours of Union forts on south side of Potomac, 1862 [map].

    This map shows the names and configurations of Union fortifications on the Virginia side of the Potomac River in 1862, and in some cases lists the name of the regiment that built the structure.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Union forts on Maryland shore

    Union forts on Maryland shore

    Shows the names and configurations of Union fortifications on the Maryland side of the Potomac River in 1862, and in some cases the name of the regiment that built the structure. This appears to be a companion piece to the image on p. 43.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Atlanta, Georgia and its rebel defences [sic]

    Atlanta, Georgia and its rebel defences [sic]

    Map shows a detailed layout of the city of Atlanta, Ga., including the batteries and earthworks in the surrounding area. The Western Atlanta and the Macon & Western Railroad are also indicated. The map depicts the situation in the city as of 1 September 1864; the city fell to Sherman's army on the 8th.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Map of Richmond, Virginia...1863.

    Map of Richmond, Virginia...1863.

    Identifies Confederate prisons, forts, and hospitals in Richmond, Va.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Plan of works erected at Centreville, Va., by Union forces. Under direction of Genl. Barnard Chief Engineer of Department of Washington.

    Plan of works erected at Centreville, Va., by Union forces. U...

    Map shows the area surrounding Centreville in Fairfax County , Va., and includes the locations of abandoned Confederate fortifications on the outskirts of the town.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • The Enemy's fortifications around Vicksburg

    The Enemy's fortifications around Vicksburg

    Shows the terrain and Confederate fortifications around Vicksburg, Miss., in mid-May, 1863, just after Confederate Gen. Pemberton was forced to evacuate Hayne's Bluff. Indicated are the locations of Union forces under Sherman, McPherson, McClernand, and Carr.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Topographical map of Washington, D.C., and vicinity. Showing the Union forts and defences built 1861-3.

    Topographical map of Washington, D.C., and vicinity. Showing ...

    Detail from a printed map of the Potomac River region of Maryland and Virginia, and including Washington, D.C., which Sneden has annotated to show the locations of Union forts and picket lines.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Map of Morris, Folly, Coles and James Island[s] etc., and Charleston Harbor S.C. shewing [sic] Union and Rebel forts and batteries, 1864.

    Map of Morris, Folly, Coles and James Island[s] etc., and Cha...

    In significantly less detail than his usual work, Sneden here shows the disposition of Confederate fortifications through out the Charleston region.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • New defenses erected at Centreville, Virginia

    New defenses erected at Centreville, Virginia

    Originally built by the Confederates and used for winter quarters in 1861-1862, the defenses around Centreville were also used by the Union Army to cover the retreat back to Washington after both 1st and 2nd Bull Run. When Lee began concentrating his forces around Culpeper in July 1863, and Meade, not to be outdone, moved his army to a position opposite them along the ...

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1863
  • Capture of forts [sic] Henry ... Tennessee By U.S. Grant, January 1862.

    Capture of forts [sic] Henry ... Tennessee By U.S. Grant, Jan...

    Shows Confederate Fort Henry on the Tennessee River. The entire site was to include the fort on the low ground near the edge of the river with an entrenched camp (Fort Heiman) on a high plateau immediately above it. The work was not completed and on the day of the Union attack the river had partially flooded the fort site. Realizing the futility of ...

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1862
  • Plan of Genl Q. A. Gillmore's position on Morris Island, Charleston S.C.

    Plan of Genl Q. A. Gillmore's position on Morris Island, Char...

    Shows the progression of earthworks constructed to allow Union forces to approach Fort Wagner. Gillmore's troops reached the ditch surrounding the fort on September 6. The Confederate forces abandoned the fort during the night.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Map of the rebel position at Vicksburg, Miss., May 1863.

    Map of the rebel position at Vicksburg, Miss., May 1863.

    Shows the Union troops surrounding the Confederate fortified city of Vicksburg, Miss., with blockades and forces on both sides of the Mississippi River. Shows the locations of outlying Confederate forts and other defenses including extensive use of abatis and felled trees to hinder overland advances. The map also indicates the position of Union gunboats on the Mississippi River south of the town of Warrenton, ...

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Map of the defences [sic] of Richmond, Va., April 1865.

    Map of the defences [sic] of Richmond, Va., April 1865.

    Portrays 23 numbered forts around the city of Richmond, which includes the following named forts, Johnson, Magruder, and Harrison.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Ft. Fisher shewing [sic] Union attack, Jany 15th 1865 From survey made after surrender by U.S. Engineers.

    Ft. Fisher shewing [sic] Union attack, Jany 15th 1865 From su...

    Map shows area surrounding forts Fisher, Buchanan and Anderson near Smithville, N.C. Fort Fisher, located on the peninsula formed by the Atlantic Ocean and the Cape Fear River, was the primary target of the Union assault. Details include locations of Confederate batteries, abatis, spikes, palisades, and ditches, and arrows showing the direction of the advance of the various Union forces.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Plan of approaches to the Vicksburg Mine.

    Plan of approaches to the Vicksburg Mine.

    Shows Brig. Genl. Hickenlooper's design for the trenches approaching Vicksburg, Miss., for the placement of the explosives detonated on 25 June.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Plan of the redoubt and rifle pits ensilading [sic] the Leesburg and Fairfax turnpikes 2 miles from Alexandria, Virginia. Built by the 38th, 40th N.Y. and 3rd Maine regiments during October and November 1861.

    Plan of the redoubt and rifle pits ensilading [sic] the Leesb...

    Includes main roads, buildings used for the hospital, chapel, stables, theater, and headquarters encampment of Brigadier General John Sedgwick.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1870
  • Genl. Q. A. Gillmore's line of earthworks in front of Fort Wagner, Morris Island, S.C., July 1863

    Genl. Q. A. Gillmore's line of earthworks in front of Fort Wa...

    Map depicts the siege of Fort Wagner, Morris Island, Charleston Harbor, S.C. Details include the locations of swamps, marshes, and sand ridges, and the elaborate earthworks and trenches constructed by Union troops under Gen. Q. A. Gillmore as they prepared to lay siege to the fort.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Fort Lyon, near Alexandria, Virginia

    Fort Lyon, near Alexandria, Virginia

    The map shows a close up drawing of Fort Lyon located on Eagle Hill in Alexandria, Virginia. Shows the fort's defenses, including abatis, ditches, salients, sally port, and bomb proof.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Capture of forts [sic] ... Donelson, Tennessee By U.S. Grant, January 1862.

    Capture of forts [sic] ... Donelson, Tennessee By U.S. Grant,...

    This map shows the area surrounding Fort Donelson, Tenn., including the Cumberland River, the town of Dover, and Fort Henry Road, and includes the locations of confederate earthworks as well as roads, buildings, woods, and creeks.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1862
  • Plan of the assault on Ft. Wagner, July 11th 1863.

    Plan of the assault on Ft. Wagner, July 11th 1863.

    Detail of Morris Island, Charleston Harbor, Charleston S.C., showing Confederate Fort Wagner being shelled by the U.S.S. Monitor. Also shown is the daylight assault of Gen. George C. Strong against the heavily-defended fort. Strong's forces were quickly repulsed and with great loss of life.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861