HIERVE EL AGUA, OAXACA, MEXICO

Hierve el agua is a place about 2 hours from Oaxaca Juarez, by car driving in a gravel way where you can see an espectacular petrified falls.

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Petrified falls in Hierve el agua Hierve el agua falls oaxaca mex Petrified falls in Hierve el agua
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Hierve el Agua (Spanish for "the water boils") is set of natural rock formations in the Mexican state of Oaxaca that look like waterfalls. The site is located about 70 kilometers east of Oaxaca city, past Mitla, in the municipality of San Lorenzo Albarradas, with a narrow, winding unpaved road leading to the site. The site consists of two rock shelves or cliffs which rise between fifty and ninety meters from the valley below, from which extend nearly white rock formations which look like waterfalls. These formations are created by fresh water springs, whose water is over saturated with calcium carbonate and other minerals. As the water scurries over the cliffs, the excess minerals are deposited, much in the same manner that stalactites are formed in caves. One of the cliffs, called the "cascada chica" (small waterfall) or the Amphitheatre, contains two large artificial pools for swimming as well as a number of small natural pools. One of the artificial pools is very near the edge of the cliff.
The site is located in a very isolated region with rough terrain, dominated principally by holm oak forest, cactus and other semi desert vegetation. The "waterfalls" or rock formations are on cliffs of mountains that rise abruptly from the narrow valley floor below. It is located in ethnic Mixe territory, with the two closest and most populous communities being San Lorenzo Albarradas and San Isidro Roaguia with populations of 1403 and 320 respectively (2005). The springs that produce the rock formations are one of the few water sources in the area.
The site consist of two waterfall-like rock formations which have been formed over thousands of years. Both cliffs rise over fifty meters from the valley floor, with one rock formation reaching down twelve meters and the other reaching down thirty meters. The twelve foot one is called "cascada chica" (small waterfall) and "flows" off a base which is about sixty meters wide. The other, "cascada grande" (large waterfall), extends down from a base with which is about ninety meters wide and eighty meters above the valley floor.
The rock formations are often described as "cascadas de sal" (salt waterfalls), "cascadas petrificadas" (petrified waterfalls) and "cascadas pétreas" (rock waterfalls) . The falls are formed by relatively small amounts of water which is oversaturated with calcium carbonate and comes to the surface through cracks or figures on the mountainside. The water has a temperature of 22 to 27C. As the water scurries down the rock face, it forms large stalactites similar to those found in caves. The flow of water from the spring varies significantly between the dry and rainy seasons. 95% of the surface rock formations are of calcium carbonate; however, lower layers of both rock and water currents are little known as they are sealed by the above layers. The calcium carbonate gives the formations a white or near white appearance, but other minerals that can be present in the water, such as silver, barium and iron can also be found and determines the color of a particular stalactite. The calcium carbonate in the water is due to rainwater which passes underground. First it absorbs carbon dioxide, and forms molecules of carbonic acid. This acid comes into contact with underground marble and partially dissolves creating calcium bicarbonate. When the water runs above ground, the excess minerals fall out.

The waters, with their high mineral content, are reputed to have healing qualities.

Natural and lower artificial poolThe more easily accessible and more often visited of the two waterfalls is the "cascada chica," also called the Amphitheatre. This cliff rises over fifty meters above the valley floor, where there is a natural platform about sixty meters wide. This platform has four springs. The water from three of the four springs is captured by a number of small natural pools and two large artificial pools in which visitors can swim. The lower of the two pools is very close to the cliff edge and was built in 2007. In these pools, the water appears a turquoise green due to the mineral concentration. The fourth spring is located closest to the edge and responsible for most of the waterfall rock formation. Two of the four springs on the Amphitheater side rise from the level floor and appear to bubble up, which is the source of the name. The bubbling action of these and some other springs is thought to occur due to construction of underground water currents. This bubbling action leads to the name of the area, Hierve el Agua (the water boils). Water constantly flows out of the springs and the process of depositing the calcium carbonate is ongoing, which can be seen on the walls of the artificial pools.

Trails lead from the cascada chica to the cascada grande, the valley floor and other areas in the vicinity. The cascada grande is just to the south of the cascada chica and easily visible from it. This waterfall rock formation is more vertical than the cascada chica. Similarly, it is a rock shelf from which flows mineral laden water over the side. This self is ninety meters above the valley floor, eighty meters wide with the waterfall extending down for about thirty meters. This self does not have artificial pools.
The area is also of archeological interest because of the extensive system of irrigation and terraces built by the Zapotecs as many as 2,500 years ago. It was also most likely a sacred site to the ancient peoples of the Oaxaca valley. The canals are part of an irrigation system which was created more than 2,500 years ago, most of which extend from the Amphitheatre side. Researchers have studied the terraces and canals which have been cut into the sides of the mountains these cliffs are on and have concluded that there were an irrigation system, unique in Mexico. Only vestiges of these irrigation canals remain; however, the archeological area has not been completely explored. These irrigation canals are considered to be unique in Mesoamerica, not only because irrigation was not common in pre-Hispanic Mexico but because they are the only example of lined irrigation canals. It is not known why canal lining does not appear outside of the Hierve el Agua area, and here the lining develops naturally. While seepage and bank erosion were indeed problems with irrigation farming in other parts of Mesoamerica, the nearest example of anything similar is with the Hohokam of southern Arizona in 650 C.E


See also in Oaxaca
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Hierve el agua mexico Santa Maria del tule mexico Mitla mexico Monte Alban mexico m Oaxaca de Juarez mexico Teotitlan mexico Alebrijes meixo Cuilapan mexiSan Bartolo Coyotepec
Restaurants in Oaxaca MexicoHostels in Oaxaca

May 2008