Sundials - World's Oldest Clocks

North American Sundial Society

Sundials of North America

This is a complete listing of sundials in the North American Sundial Society Registry. Click on any dial thumbnail picture or city name to display the full dial listing and images. To see sundials from a particular state or province, you may click on the list at right to see all registered sundials in that state, province or country (at bottom) displayed in city order.

You may also type into the NASS search field at upper right any search word such as "equatorial" to get a list of all articles mentioning equatorial dials and a list of all equatorial sundials in the registry. (Try other dial types: "vertical", "horizontal", etc).

 
 
Maryhill Washington USA Henge Dial 241
The Maryhill Stonehenge was the first monument in the US to honor the dead of World War I. It is 180-feet across with pillars of reinforced concrete, duplicating, as nearly as possible the original size and design of Stonehenge. The outer circle has thirty 16-foot pillars while the inner circle has forty pillars 9-foot high. Build by a wealthy entrepreneur Sam Hill as a memorial to servicemen of Klickitat County.
 
 
Penticton British Columbia Canada Analemmatic Dial Dial 240
This analemmatic dial, called the Skaha Solar Timepiece is on a lakefront beach, spanning an area of 65 x 35 feet. At the center is a large 15 foot raised wooden platform supporting a flat steel analemma with months/dates pierced through. Observer stands on current date to be the gnomon. The hour markers are short concrete posts. These posts, which form an ellipse around the platform, were originally wood when the dial was first designed by Gwen Boyle a sculptor from Vancouver. After 14 years of weathering, the rotting wood was replaced by concrete during renovations in 1998.
 
 
Cohoes New York USA Horizontal Dial Dial 239
12' Bronze 10' Metal dial mounted on marble(?) square atop column. Roman numerals 5AM-7PM. 'Van Schaick Island Golf Club' on dial face above inscription. 'In memory of/ John F. Gaucas/ Who Served as Golf Professional at the/ Van Schaick Island Country Club/ 1944 to 1974' on small granite marker near base of dial.
 
 
Rocklin California USA Vertical Dial Dial 238
Small, circular 12.5 in. vertical dial mounted 56 in. above ground on the south wall of the library. Dial is aluminum mounted on concrete. Hour line missing from 6AM to gnomon base. Wall faces 26 degrees SW. Hour lines, numbered only at 6, 9, 12, 3 and 6. Two memorial plaques adjacent to dial. One reads 'Sierra College Honors/ E. R. 'Russ' Fallon/ for Dedicated Services/ Building Inspector/ Building and Grounds Supervisor/ 1959-1975'. Other reads 'In Admiration and Fond Memory/ of Our Colleague/ Dwight Hall/ 1927-1972/ by the/ Academic Senate and Friends/ at Sierra College.'
 
 
New Orleans Louisiana USA Horizontal Dial Dial 237
This large horizontal sundial sits on a slightly pink concrete egg-shaped base 24 x 17.5 feet. This dais is nearly at ground level. The gnomon is an elegant stainless steel blade approximately 8 feet high sitting at the widest part of the dais, with hours marked around the dais edge with small bronze animals at each hour from 6am to 6pm. For example the noon hour is represented by a turtle.
 
 
Oakland California USA Horizontal Dial Dial 236
Large horizontal dial, with steel gnomon 22 ft. long, 14 ft. high. It looks like a sculpture of three interlocking triangles. The triangles of 2-inch thick Cor-Ten steel plates create the dial's gnomon and supporting structure. The dial sits in a courtyard where the only hour markers are placed on the lawn and brick patio around the dial. EOT values for every 5 days are shown on the north face of the support.
 
 
Vallejo California USA Equatorial Dial Dial 235
A 5-foot equatorial sundial with elegant time and meridian supporting arcs. The gnomon A 5 ft. aluminum polar dial. The gnomon has the profile of the Golden Gate Bridge. Time is marked in both standard and daylight saving time with Roman numerals. The dial was a gift from Vallejo's Sister city, Akashi, Japan.
 
 
Louisville Kentucky USA Equatorial Dial 234
Park rangers set up a 16 x 20 inch portable equatorial sundial. The dial is used for teaching a solar energy class.
 
 
Pekin Illinois USA Horizontal Dial Dial 233
A unique horizontal dial using both a sloping 15 foot aluminum gnomon and much taller 45 foot vertical pole. The ground level dial face consists of seven analemmas drawn in the grass field that surrounds the dial center. The analemmas are drawn for the hours 8-AM to 3-PM 3, corresponding to the tip of the sloping aluminum gnomon. However, the noon analemma is larger and corresponds to the shadow of a disk atop the vertical pole.
 
 
Santa Barbara California USA Equatorial Dial 232
A small bronze equatorial dial made by Victor E. Edwards in the 1920's. It has an unusual crescent shaped arm with notch at the upper end. The arm is rotated until sunlight through the notch strikes an analemma on the lower inner curve of the crescent. Time is then read on a circular dial from an "hour hand" pointer extending from the base of the crescent. The dial is mounted on a granite pedestal with spherical top 21 inch high.
 
 
Ewing New Jersey USA Combination Dial 231
A combination horizontal and equatorial dial. Stainless steel equatorial ring is 8 feet wide x 10 feet high. Equatorial gnomon extends to cement face of horizontal dial. Bronze plaque provides a table of corrections for EOT and longitude. Identified as the William H. Hausdoerffer Sundial to honor Dr. Hausdoerffer, Class of 1936, Professor Emeritus of Mathematics, Department Chairman, Dean of Men, TSC Athletic Hall of Fame, Alumni Executive Board and adviser to many groups, serving from 1940 to 1979.
 
 
Ottawa Ontario Canada Horizontal Dial Dial 230
A large horizontal floral dial approximately 20 feet in diameter. Large circular area on ground forming the dial face with gravel and flower-beds between the hour lines. The flowers are annuals, best seen in the summer blooming season. Update June 2018: The dial has been refurbished with a new, accurately placed gnomon and wonderful bright flowers.
 
 
Philadelphia Pennsylvania USA Horizontal Dial Dial 229
Bronze horizontal dial by Alexander Stirling Calder. Local Hour lines plus EoT monthly corrections and differences between 12 world cities. Tip of gnomon appears damaged. The elegant pedestal sculpture is made of white marble and depicts 4 seated young women as the four seasons holding the dial plinth on their shoulders. The plinth itself is intricately carved with the animals of the zodiac. Height 42-inches, Diameter 50-inches. The dial was a gift of Mrs. Charles P. Turner, through the Fairmount Park Art Association (now the Association for Public Art) to the City of Philadelphia
 
 
Chicago Illinois USA Equatorial Dial 228
Equatorial in bronze. 2 meters in diameter. Arabic hour numerals. Hour scale is subdivided into 5 minute intervals.
 
 
Silver Bay Minnesota USA Horizontal Dial Dial 227
A horizontal dial on the ground, with an hour circle about 12 feet. The gnomon is of steel, about 4 foot high. The gnomon is oriented to magnetic north. It is not an accurate device. Three boulders surround the dial and cut off the shadow much of the time. Gravel hour circle has rocks to mark the hours, but the rocks can be moved and are strewn all about. More suggestive of a dial than a real dial.
 
 
Macon Georgia USA Horizontal Dial Dial 226
A horizontal dial 16 inches in diameter located beside the observatory, just outside the museum. Includes hour markings for EST and DST and an EOT graph. Hour lines corrected for longitude. Mounted on a 24 inch high pedestal low enough for children to enjoy.
 
 
Steamboat Springs Colorado USA Equatorial Dial 225
This equatorial sundial is a memorial to Barbara Perry Cosel and sits in front of the"Bud" Werner library. A large 6 ft. thin iron equatorial, it is constructed of two 270 degree arcs that intersect at right angles. Time marks are simple detente marks on the equatorial arc. The gnomon is a traditional arrow. At the base of the dial is a plaque containing a graph of the Equation of Time to determine Mountain Standard Time.
 
 
St. Petersburg Florida USA Equatorial Dial 224
An equatorial dial built by Erickson Monument Co in 1974 for the War Veterans Memorial Park. Dial is 6 feet in diameter made from granite. The gnomon rod of about 3 inches diameter is stainless steel. Hour, half hours, quarter hours and five minute marks show the time. For symmetry, the face has hours marked for the entire 24 hours, though in Florida the excursion of time from 6am to 6pm is relatively small. The hour lines are rotated for the site longitude.
 
 
Chicago Illinois USA Equatorial Dial 223
Henry Moore Sundial Sculpture: 13 foot bronze equatorial dial built in 1980. Two bronze semicircles, one set inside and at right angles to the other, form the main elements. A slim rod runs from one end of the outer semicircle to the other end and its shadow on the inner semicircle below marks the time of day. EOT correction is provided.
 
 
Colorado Springs Colorado USA Analemmatic Dial Dial 222
Analemmatic dial in granite and bronze. 9ft x 12ft. Mottled granite block surface with number border of smooth granite blocks. Hour numbers are engraved in granite. Zodiac marker is brass, embedded in the granite face. As with most analemmatics, the dial is not corrected for longitude. Fortunately, the location is very close to the center of the time zone at 105 deg W. User stands on a central analemma at correct date and acts as the gnomon to cast a shadow that points to local solar time. The aspect ratio is not correct for the latitude and the positions of the solstice markers are slightly off.