Relief shown by hachures.General map of eastern Virginia showing cities and towns, roads, and rivers. The map is overprinted in red to indicate railroads and concentric circles centered on Richmond. Circles are at intervals of ten miles.In his report to the Superintendent of the Coast survey dated November 1, 1862, Nicholson notes that "In addition to the printing of our charts proper, a map representing the seat of war in Virginia was, at the suggestion of the Superintendent, compiled by myself during the past year, and printed in colors, partly as an experiment in that class of work, and partly to meet the popular demand for information on the movements of our armies. This map has met with unexpected success, and has been much called for,...