A qanat out of control. The original tunnel was less than two meters high, but years of erosion have left Mexico's Qanat La Venta up to 20 meters deep.
© John Pint, 2011
Source article: Persian qanats in Western Mexico
A qanat out of control. The original tunnel was less than two meters high, but years of erosion have left Mexico's Qanat La Venta up to 20 meters deep.
© John Pint, 2011
Source article: Persian qanats in Western Mexico