Sundials - World's Oldest Clocks

North American Sundial Society


Sundial: 208
State/Province:  District of Columbia Country:  USA
Dial Type:  Horizontal Dial Condition:  
  Latitude and Longitude: 38° 54.000' N  77° 4.000' W
  • South end of 30th St. NW, a few feet from the Potomac River
  • Large, ground level horizontal dial 16 ft. in diameter with 49 in high stepped hollow painted-green metal gnomon that is 5 ft 16 in long. Roman hour numerals with hour lines from 4:30 AM to 9:30 PM. Gnomon structure recalls the much larger Indian observatory dials. An appropriate poetic passage, once bolted to the gnomon, has disappeared.
General Information:
  • Owner:
  • Designer:
  • Builder:
  • Construction Date: ca 1985
  • Geo. McDowell, Twelve Sundials of Washington, nr. 10

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