AI was utilized for research, writing, citation management, and editing. The author has no affiliation with any companies mentioned. Lake Superior agates—those stunning, banded gems in shades of red, orange, and yellow—aren’t just Minnesota’s pride. Northern Wisconsin’s shores, riverbeds, and gravel pits often yield these sparkling remnants of ancient geology, scattered by glaciers and river currents. (Rock Chasing, Rockhounding)