Washington meridian marker stone at Meridian Hill Park in Washington, D.C.

marker

The Washington meridian marker stone at Meridian Hill Park in Washington, D.C. marks the historic Washington Meridian, a longitudinal reference used before Greenwich was adopted internationally. Originally located just west of a tablet presented by the Daughters of the American Revolution, the stone highlights the city's surveying history. It is situated near 16th Street and Crescent Place NW within Meridian Hill Park, a site known for its historic landscape and monuments.