“...Another distinctive thunderegg is encountered between Ashwood and Antelope, Oregon.The Thunderegg bed was uncovered during the construction of this road. Once discovered, the eggs were quickly dug out, and none remain. It´s easy to understand why these “Donnybrook” or “Almond bed” Thundereggs are highly prized...”

From the presentation-programm “These Fabulous Thundereggs”, published by Doug Moore, Stevens Point, 2005