To make the battlefield, I have so far 1) made an image of the area using ACME Mapper, 2) modified the image to include 18th-Century terrain features and to exclude modern ones, 3) divided a piece of poster board into 1000 (scale) foot squares, and 4) sketched the terrain features onto the poster board. The image below shows this work in progress, with trees and a building added to help give a sense of what the final product will look like. There is a large pond at left and a ridge at center. The various curving lines show either roads or streams. The whole thing will of course look a lot better once the poster board has been painted and flocked.
Do you think you know which battlefield this is? Impress me by leaving your answer in comments.