In 1789, the U.S. Constitution called for the creation of a federal district under the jurisdiction of Congress. Since then, Washington D.C. has not been part of any state. It sits along the Potomac River and this elevation map provides a compelling visual of the area formerly known as the District of Columbia. Each map is produced on a 12-color gicleé printer using premium inks for intricately detailed, fade-free visuals. The maps are printed on archival paper in the USA and certified to last 100 years.