Get out of the car, hop over a few thin streams and a rock amphitheater appears, its tall walls winding around, almost forming a perfect circle in the ground just south of Cheney. Pillars of basalt ...

BUFFALO, N.Y. — Rocky pillars dotting Iceland’s Skaelingar valley were projectiles tossed into the fields by warring trolls. That, at least, is the tale that University at Buffalo geologist Tracy ...