The Casa Blanca Pond, also known as the Casablanca Pond, is located in the municipality of Husillos, in the province of Palencia, near the Casablanca Aqueduct, one of the remarkable structures of the Castile Canal in this section. Its origin is linked to the construction and operation of the canal between the 18th and 19th centuries, when the excavation of the riverbed and its barrier effect altered the natural drainage of the land.
This wetland is a small, seasonal pond with a highly variable water level throughout the year, depending on both seepage from the canal and weather conditions. The marsh vegetation that grows along its edges introduces a significant contrast to the cereal-growing landscape of Tierra de Campos, contributing to the diversification of a traditionally dry and homogeneous environment.
The Casablanca Pond is part of the protected area ZEPA Lagunas del Canal de Castilla, integrated into the Natura 2000 network, and is included within the conservation and environmental management actions carried out under the LIFE project. Its heritage value lies both in its ecological importance and in its close relationship with the Casablanca aqueduct, allowing us to understand the Canal de Castilla as a system in which engineering, landscape, and nature are intimately linked.
For the visitor, this enclave completes the set of wetlands in the Husillos area, offering a joint reading of the canal not only as a historical infrastructure, but as a generator of new natural landscapes that are now protected.
