A photo taken 25 years ago along the route to Mexico's Piedras Bola megaspherulites. The elusive trail often disappeared completely.
© John Pint, 2009
Source article: Las Piedras Bola: the great stone balls of Ahualulco
A photo taken 25 years ago along the route to Mexico's Piedras Bola megaspherulites. The elusive trail often disappeared completely.
© John Pint, 2009
Source article: Las Piedras Bola: the great stone balls of Ahualulco