Thunderegg Days is a beloved annual tradition in Nyssa, Oregon, celebrating the region's unique geological treasures. Held at the Nyssa Elementary School, this three-day festival features rock and mineral displays, vendors, and community activities for all ages. Visitors can explore the fascinating world of geology, browse unique specimens, and enjoy the vibrant local atmosphere. It is a must-attend event for rock hounds and families looking for a fun, educational summer experience in Oregon.
What to Expect
A lively festival atmosphere with various rock-related exhibits and community vendors.
Who Should Attend
Rock collectors
Geology enthusiasts
Families
Local residents
Tourists
Agenda Overview
The event runs daily from 9:00 AM to 9:00 PM, July 9-11, 2026.