Not sure where in Wyoming you are, but if it's an option I strongly recommend Grandville Preschool through Grandville Community Education. Our son went to both 3-year-old and 4-year-old preschool at Century Park Learning Center and enjoyed a wonderful, positive, safe and nurturing experience both years. We absolutly loved it!
Our older son enjoyed two years at Calvin Christian and had a good experience through his preschool years. His kindergarten experience however was a nightmare. We tried numerous times to talk with both teacher and principal to resolve the issues and allow him to feel safe and supported, but to no avail. We pulled him from Calvin Christian and placed him in Grandville public schools (also at Century Park) and it has made a world of difference. He loves going to school again.
Also, depending on your budget and availability to drive, several area Montessori Schools get rave reviews!