Skull Springs Bed

The Skull Springs Bed, located in Malheur County, Oregon, is a remote and rugged thunderegg site known for producing nodules with bold, earthy agate interiors. Eggs from this bed often feature deep reds, browns, and smoky grays, with occasional moss or dendritic inclusions that add texture and depth. The rhyolite matrix is typically coarse and weathered, and the eggs tend to be solid and medium to large in size—well-suited for slicing and polishing. While not as widely collected as some nearby beds, Skull Springs thundereggs are appreciated by those who seek classic desert colors and strong internal contrast.