Nyssa's thunderegg title is not collecting permission

Nyssa calls itself the Thunderegg Capital of the World. That title tells you what the city celebrates, not where you may remove a rock.

DOGAMI describes a thunderegg as a structure formed in welded tuff or perlitic rock. It names Malheur among the counties where thundereggs are chiefly found. Oregon’s statute index records the Legislature’s 1965 declaration of the thunderegg as the official rock.

Before collecting, identify the land manager and current rules. BLM says to know whose property you are on, get private-land permission, and check local restrictions before you go. That is Nyssa’s hinge: the city can celebrate the stone while the ground under your boots decides whether it stays there.