US Meridian - Zero Milestone - Washington, DC - Great Lines of Earth on Waymarking.com

The Zero Milestone is on the meridian running through the White House & in line with the Meridian Stone which was set in 1890.

This monument is engraved on all 4 sides with the following text:
N - ZERO MILESTONE
E - STARTING POINT OF SECOND TRANSCONTINENTAL MOTOR CONVOY OVER THE BANKHEAD HIGHWAY, JUNE 14, 1920
S - POINT FOR THE MEASUREMENT OF DISTANCES FROM WASHINGTON ON HIGHWAYS OF THE UNITED STATES
W - STARTING POINT OF FIRST TRANSCONTINENTAL MOTOR CONVOY OVER THE LINCOLN HIGHWAY, JULY 7, 1919

A plaque at the N base of the monument reads as follows:

THE US COAST AND GEODETIC SURVEY DETERMINED THE LATITUDE, LONGITUDE AND ELEVATION OF THE ZERO MILESTONE

AUTHORIZED BY ACT OF CONGRESS JUNE 5, 1920
DEDICATED JUNE 4, 1923

The monument is also marked on various maps, including USGS quads.

Line type: Historical meridian Tolerance: 0 If other type, please explain.: Not listed

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