Bringing back an old favorite, GC36J6C, by dan-dad, a popular hide here with 164 finds (and 12 favorites) between November 2011 and November 2016.
The posted coordinates will bring you to the center of the UMass Sunwheel, a project conceived by UMass astronomy professor, Judith Young in 1995. The goal of the Sunwheel project is to concretely illustrate the variations in the Sun's position on the horizon throughout the year, and bring a greater awareness and understanding of astronomy to the University community, school children, and the general public, thereby enhancing science literacy, encouraging curiosity, and improving the quality and enjoyment of life. The Sunwheel provides a gathering spot for people to learn about and enjoy the sky together.
From this point, locate the north east corner of the sunwheel. You will find three words , each beginning with the same letter.
Count the number of letters in the first word, multiply by 71, and add 1 to get N 42 22.XXX.
To find W 72.32.YYY, multiply the number of letters in the third word by 49.
The cache is hidden nearby, just a short walk from the Sunwheel. Good luck!