This is a cyanotype blueprint of a map of the National Zoological Park in Washington, D.C. The image is rendered in shades of blue, typical of cyanotype prints. The map depicts an aerial view of the park, showcasing its layout with winding paths, roads, and various buildings. Dense clusters of trees cover much of the area, creating a textured, green-blue landscape. The park's design includes a large, winding body of water, likely a pond or stream, and several distinct enclosures or areas. In the lower right corner, there's a rectangular label with text detailing the park's name and location. The blueprint is mounted on a larger sheet, and there are visible mounting holes along the edges. The edges of the sheet show signs of wear and tear, with some creases and discoloration. The overall impression is that of a historical document, a detailed plan or model of the zoo as it existed at the time the blueprint was created.