At the Bottom of Gatun Lock

Joseph Pennell

National Gallery of Art

This is a drawing of a large industrial shipyard or construction site. The scene features towering structures such as ship hulls or steel frameworks, creating a narrow passage. Railway tracks extend into the distance, indicating activity. Strong vertical and horizontal lines convey scale and perspective. Small sketchy figures occupy various levels of the construction. Dark shadows contrast with the lighter central passage, emphasizing vertical space. The style emphasizes industrial power and architectural grandeur.