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levada water course . . . | uwhe-arts
Levadas are the name of the artificial watercourses that were built in Portugal and Madeira (Portugal) to direct water from the wetter areas to the agricultural areas. In Madeira, water is channeled from the north and center of the island to the south. Most levadas only have a small incline. They skirt valleys and mountains, pass through tunnels and cross natural watercourses on aqueducts.
(source: wikipedia)
Source: uwhe-arts