“..Desolation Canyon was once the site of several claims, but the entire area is now located within the Mill Creek Wilderness. Collecting is no longer allowed and the claims are abandoned. Some of the claims that were located in the canyon are Bear Springs, Tamarack I & II, Lavish Lady, Smokey Blue, Little Smokey Blue, Two Dogs, Sleeping Beauty, Fly Ridge and Yellow Jacket...”

extract of the article from Mark Ketsdever, Hillsboro, Oregon, 2007 :”Thunderegg Agates of the Ochoco Mountains, Oregon, USA”

This sample of an Yellow Jacket-Thunderegg is showing a deeply blue core and the typical rim for this location.