This battle was apparently known as the battle of Grant's Creek and was fought three days after Lee's surrender in Virginia. Here's a description of this engagement and below are a couple of links from Union official reports which also describe this action.

Grant's Creek, N. C.,
April 12, 1865.

2nd and 3d Brigades, Cavalry Division, District of East
Tennessee.

As an incident of Stoneman's raid into western North Carolina, Brown's and Miller's brigades and the artillery under Lieut. Regan moved toward Salisbury from Salem. On arriving at Grant's creek the Confederates, 3,000 strong, were discovered in line of battle on the Salisbury side of the stream.

A charge was ordered along the whole line, which resulted in the capture of 1,364 Confederates and 14 pieces of their
artillery. The rest of the enemy were driven through and
beyond Salisbury, between 2 and 3 miles distant.

The casualties were not reported.

Source: The Union Army, Vol. 5, p. 472

http://www.ls.net/~newriver/nc/wilkescw.htm

http://www.aotc.net/selma-rep.htm#Wilson

http://www.tngenweb.org/civilwar/usacav/usa8cav.html