This is a black and white sketch depicting a Civil War battlefield scene. The style is loose and expressive, with quick, energetic lines. The composition is crowded with figures and elements. In the foreground, there are soldiers, some on horseback, engaged in battle. Cannons are positioned amidst the chaos, with smoke billowing around them. The landscape is rough and uneven, with trees and grass scattered throughout. The artist uses a variety of line weights and textures to create a sense of depth and movement. The overall effect is one of intense action and drama. The sketch is titled 'Green River 61' in the bottom left corner. The paper has a warm, aged tone.