Revolutionary War Maps: The British Campaign of 1777 on the Upper Delmarva Peninsula
The Library of Congress, the Boston Public Library, and other virtual repositories have a series of detailed maps showing British operations on the upper Delmarva Peninsula, during the summer of 1777. Several of these detailed products show the camps, movement, and engagements, as well as the general topographic nature of the region at that point. Here are some samples. You may want to check these out if this subject is of interest to you. It is fascinating to be able to examine the details of the movements and the area, from multiple sources.