Richardsons (Priday) Thunder Eggs:
About 40 miles northwest of the Prineville area, just north of Madras OR. on Hwy 97 is Richardsons Rock Ranch. Richardsons is probably one of the best known thunder egg digs. It has been around for many years not only as Richardsons, but part of Richardsons was also the old Priday beds. The Priday plume beds have not been worked for many years now so this particular material is very rare. This is a pay to dig ranch. They offer several beds with many types of materials. They also have different agates and jaspers to dig too.