This pen-and-ink and watercolor manuscript map was drawn by Jean Nicolas Desandrouins (1729–92), an engineer with the French army of General Rochambeau during the American Revolution. It shows the layout of the Battle of Green Spring, in southeastern Virginia, on July 6, 1781. This battle came near the end of the war, and involved Continental Army troops under the Marquis de Lafayette and General Anthony Wayne and British troops under General Lord Cornwallis. The battle was a minor victory for the British and the last land battle in Virginia before their ultimate loss at Yorktown. This map shows the town of Jamestown, as well as the battle site on the left bank of the James River across from the town. A lettered key identifies the troop positions of the Americans and the French, their maneuvers, and other points of military interest. The map also shows a mill, a church, a ferry, houses, roads, creeks, and vegetation. Among the sites listed are Humbler’s plantation, and the properties of Monsieur Lralchfeld, Monsieur Wilkesson, and Monsieur Harris. Virginia was a colonial center of tobacco production, and many of these plantations were part of the tobacco economy. The map has a watermark. Relief is shown by hachures. Scale is given in toises, an old French unit measuring almost 1.95 meters. The map is from the Rochambeau Collection at the Library of Congress, which consists of 40 manuscript maps, 26 printed maps, and a manuscript atlas that belonged to Jean-Baptiste-Donatien de Vimeur, comte de Rochambeau (1725‒1807), commander in chief of the French expeditionary army (1780‒82) during the American Revolution. Some of the maps were used by Rochambeau during the war. Dating from 1717 to 1795, the maps cover much of eastern North America, from Newfoundland and Labrador in the north to Haiti in the south. The collection includes maps of cities, maps showing Revolutionary War battles and military campaigns, and early state maps from the 1790s.