Puente del Inca

Puente del Inca is a natural arch that forms a bridge over the 'Las Cuevas' river and is located in Mendoza Province, Argentina. It is also the name of the nearby hot springs. Scientists speculate that interaction of extreme elements like ice and hot springs was involved in the origin of the formation. They suppose that in ancient times ice covered the river and acted as support for avalanches of snow, dust and rocks. So the dust over the ice over the river would have served as a path for the sulfurous water and petrified the surface, so when the snow melted, the bridge remained by itself. In March 1835, Charles Darwin visited the site, and made some drawings of the bridge with large stalactites.

In the early 20th century there was a large thermal resort and spa that used the hot springs to cure certain illnesses. There was a railway station, which is still standing, and tourists arrived by train to the resort. This was one of the last Argentine stations of the Transandine Railway before the train continued into Chile, traveling through a long tunnel under the Andes.

My friend took this photo with my Minolta, but to be honest, I would not retry this 'action'. See PiP for whole bridge!