Richardson's Rock Ranch — Thunder Eggs
Madras, Oregon
About Richardson's Rock Ranch — Thunder Eggs
One of Oregon's most famous fee-dig operations, Richardson's Rock Ranch has been open for thunder egg hunting since 1968. Dig or rake for Oregon thunder eggs — round rhyolite nodules that when cut reveal stunning agate, jasper, and chalcedony interiors. Also produces obsidian, jasper, and agate nodules. Located in the high desert of Jefferson County near Madras.
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Open in Google MapsPay-To-Dig Gem Mining at Richardson's Rock Ranch — Thunder Eggs
Richardson's Rock Ranch — Thunder Eggs is a pay-to-dig gem mine located in Madras, Oregon. Visitors can dig for Thunder Egg, Agate, Jasper, Chalcedony, Obsidian and keep everything they find. Pay-to-dig experiences like Richardson's Rock Ranch — Thunder Eggs are popular with rockhounds, families, and gem enthusiasts looking for a hands-on outdoor adventure.
Looking for more rockhounding in Oregon? Explore free rockhounding locations in Oregon or browse all pay-to-dig mines in Oregon.