Location: Dinwiddie County

Campaign: Richmond-Petersburg (June 1865-March 1865)

Dates: February 5-7, 1865

Principle Commanders: Maj. Gen. A.A. Humphreys and Maj. Gen. G.K. Warren [US]; Maj. Gen. John B. Gordon [CS]

Forces Engaged: 48,352 total (US 34,517;CS 13,8335)

Estimated Casualties: 2,700 total

Description: On February 5, Bvt. Brig. Gen. David Gregg's cavalry division rode out to the Boydton Plank road via Ream's Station and Dinwiddie Courthouse in an attempt to intercept Confederate supply trains. Maj. Gen. G.K. Warren with the V Corps crossed Hatcher's Run and took up a blocking position on the Vaughan Road to prevent interference with Gregg's operation. Two divisions of the II Corps under Maj. Gen. A.A. Humphrey's shifted west to near Armstrongs Mill to cover Warren's right flank. Late in the day, Maj. Gen. John B. Gordon's attempt to turn Humphrey's right flank near the mill was repulsed. During the night, two divisions reinforced the Federals. On February 6, Gregg returned to Gravely Run on the Vaughan Road from his successful raid and was attacked by the elements of Brig. Gen. John Pegram's Confederate division. Warren pushed forward a reconnaissance in the vicinity of Dabney's Mill and was attacked by Pegrem's and Maj., Gen. William Mahone's division. Pegrem was killed in action. Although the Union advance was stopped, the Federals extended their seigeworks to the Vaughan Road crossing of Hatchers Run.

Result: Union gained ground.