The image is a photograph of a sign at the entrance of Roebling's Delaware Aqueduct. The sign is located on a hillside with trees and bushes in the background. The sky is blue and there are a few clouds in the sky.

The sign is rectangular in shape and has a white background with black text. On the left side of the sign, there is an illustration of a wooden bridge over a river. The bridge appears to be old and weathered, with a wooden railing on either side. The river below the bridge is calm and there is a small waterfall cascading down the side. On top of the bridge, there are several people walking on the bridge. The image also includes a black and white photograph of the aqueduct, which is a large, rectangular structure with multiple levels and arches.