Swanson Ranch

The Swanson Ranch, located in Jefferson County, Oregon, is a lesser-known thunderegg site that produces nodules with attractive, often understated agate interiors. Eggs from this bed typically feature soft grays, tans, and occasional blues, with mossy or cloud-like inclusions adding depth and character. The rhyolite matrix is usually light and slightly weathered, and the eggs are generally well-formed and solid. While not as widely collected as some neighboring beds, Swanson Ranch thundereggs are appreciated by cutters and collectors for their subtle beauty and consistent quality.