This permanent pond is located on the banks of the Canal de Castilla and represents one of the most striking examples of how a large hydraulic infrastructure can indirectly generate areas of high ecological and scenic value. Its origin is not due to a specific construction project or a documented construction chronology, but rather primarily to the infiltration of water from the canal itself, which, depending on the terrain’s profile and impermeability, creates stable, waterlogged areas.
The water’s surface remains permanent and is almost entirely covered by marsh vegetation. Reedbeds and rushes dominate the area, creating a dense and sheltered environment, ideal for species associated with this type of habitat. In addition, a fringe of shrubs and trees, with a prominent presence of poplars and willows on the bank closest to the canal, visually and ecologically connects the wetland with the riparian woodlands.
This plant environment supports a highly specialized fauna. Birds such as the reed bunting and the common reed warbler find their optimal habitat here, while in the wooded area appear species typical of humid forests, such as the green woodpecker, the European golden oriole, and the common nightingale. The pond thus acts as a true reservoir of biodiversity in a region with a distinctly agricultural character.
The overall state of conservation is good, although this depends on the water balance and local practices. For visitors, this wetland offers a different experience from the Canal de Castilla: a tranquil space for birdwatching, understanding the ecological function of the canal’s seepage, and enjoying a vibrant landscape that demonstrates how historical engineering has, over time, fostered the creation of valuable natural environments.
