The image shows a Union Pacific locomotive, numbered 3734, traveling on a railway track. The locomotive is painted in a bright yellow color with the words "Union Pacific" and "3734" written on the side. It is a diesel locomotive with a red stripe running along the side and a black caboose on the front. The train is moving along the tracks, with a tree on the right side of the image. The sky is blue and there are a few clouds in the background. The image appears to be taken from a low angle, looking up at the locomotive.