The Fontes Tamarici, in Spanish "Fuentes Tamáricas" (English: "Tamaric Fountains") are three springs located by the geographer and Roman historian Pliny the Elder in classical Cantabria. Since the 18th century they have been identified with the source of "La Reana" in Velilla del Río Carrión, Palencia, Spain. The first mention of the spring, by Pliny, dates from the time of the Roman conquest of Cantabria. Pliny records that the springs were frequently dry, while other nearby springs continued to flow; he says that the springs being dry was considered to be a bad omen.