What if there were a mountain range the size of the Alps that happened to be lurking somewhere besides the Alps? Turns out there is, in Antarctica. And although it’s twice the age of the beaten-down Appalachians, the billion year-old Gamburtsevs are just as jagged as the day they were born, because they’ve been protected by miles of ice, so they’ve never eroded. Now scientists have mapped the Gamburtsevs and can see that they’d be massively ski-worthy — but they haven’t been unburied since T-Rex shredded the planet. If earth continues to warm, future skiers (should humans survive) may have new peaks to bag we’ve never even seen.