The image is a black and white photograph of a group of men working on a construction site. The site appears to be a rocky hillside with a large pile of rubble and debris scattered around. In the center of the image, there is a large cannon that is lying on the ground. The cannon is pointing towards the right side of the frame and is emitting a plume of smoke or steam. On the left side, there are several men on horseback, some of whom are working on the construction site while others are standing on the hill. The sky is cloudy and the overall mood of the photograph is tense and somber.