This is a vintage, hand-colored plan or survey of the estate of E.K. Knapp, titled 'The Blackwell Survey 1860'. It's an aerial view, looking down on a gently rolling green landscape. The central feature is a large, reddish-brown building complex with multiple gabled roofs, likely a manor house or main residence. A winding driveway, lined with small, rounded trees, leads up to the building. Around the building and extending outwards are expansive lawns and fields, depicted in various shades of green. A curving path or road meanders through the landscape. Dense clusters of trees, rendered in darker greens and blues, border the estate, particularly on the left and along the upper edge. There are also smaller, isolated trees scattered throughout the grounds. The overall style is reminiscent of a watercolor painting or a hand-drawn map, with soft colors and a delicate aesthetic. The image has a slightly aged appearance, with some discoloration and wear around the edges.