Richardson's Rock Ranch — with its colorful, agate-filled nodules known as thundereggs — is rich in geologic history. And with roots reaching back to the 1800s and three generations of family running ...

Piles of rough rock for sale sit outside at Richardson's Rock Ranch. For nearly half a century, the Richardson family has been a rock for Central Oregon. The family’s Richardson’s Rock Ranch has long ...

For years, thundereggs have fascinated Oregonians. The state rock is celebrating its 60th anniversary this year. Here's everything to know about the thunderegg and where to find them in Oregon. On the ...