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Washington, D.C.
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Jefferson Pier Stone

Jefferson Pier Stone
Photo: National Park Service, Public domain

Jefferson Pier, Jefferson Stone, or the Jefferson Pier Stone, (PIE-er) is a stone in Washington, D.C. that marks the second prime meridian of the United States even though it was never officially recognized, either by presidential proclamation or by a resolution or act of Congress. It is located 391 ft (119 m) WNW of the center of the Washington Monument.

From Wikipedia, CC BY-SA 4.0.

Address
17th St NW

Place data from OpenStreetMap, © OpenStreetMap contributors, ODbL.

Also listed in Overture Maps open data.

Updated 28 Sept 2026. Something wrong? Tell us.