55: The Oldest Rock in the USA

Season 2 Finale!

For 50 years, the title of "USA's Oldest Rock" was held on the prairies of western Minnesota. In 2025, that throne was usurped by a brand new study. Where is this "new" ancient location, what rocks are here, and how old are they? Stay tuned to find out!

Dylan has an exciting announcement: he has a new visiting professor job at Gustavus Adolphus College in Minnesota! Thanks to everyone for their support.

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