Sundials - World's Oldest Clocks

North American Sundial Society

Sheridan  

Sundial 840
State/Province:  Wyoming Country:  USA
Dial Type:  Horizontal Condition:  Excellent
Latitude:   44° 45.817' N Longitude:   106° 56.600' W
Location:
  • Located on the campus of Sheridan College, near Whitney Ln. and Center St. in Sheridan Wyoming.
 
Description:
  • This monumental horizontal dial is 15 ft. in diameter sitting on a foundation of poured concrete and rebar. The dial face is etched on 4 large granite slabs from Canada. The gnomon is a 6-inch diameter steel pipe 97inches tall with a welded nodus ball and a triangular sheet beneath the gnomon that has a sun and the school logo (a mountain range) cut into it casting projected images onto the sundial face.

    The dial longitude is set to Mountain Daylight Savings Time when adjusted for The Equation of Time. Roman numerals mark the hours and time is marked every 15 minutes from 5:30am to 8:45pm. The nodus shadow shows the date including the solstice and equinox lines and 4 anniversary date lines.
 
General Information:Inscription:
  • Owner: Sheridan College
  • Graphic Equation of Time with instructions;
    Sunrise and Sunset marks;
    Anniversary date lines:
    4/6/1948-Whitney Benefits give land to Sheridan College,
    10/4/1994-Ceasar Discovered, 11/17/1917-Edward Whitney dies, 12/9/1927- Establishment of Whitney Trust.
  • Designer: John Carmichael & Josh Oakleaf
  • Builder: Stone by Across the Board Creations, installed by Dick Anderson Construction
  • Construction Date: 2016
 
References:
  • This is the largest sundial in Wyoming. The stone required was so large that the only company that could supply it was in Canada (Across the Board Creations). They also cut and etched it.

Last Revised: 2016-09-19 23:25