The first mention of the dolmen Serra Mitjana (Dolmen de la Serra Mitjana) dates back to the 9th century—an ancient document defining the borders of the village of Sant Climent de Peralta uses the dolmen as a waymark. The digging of the megalith began in 1919, but the attempts to extract it from the ground were for the longest time unsuccessful—only in 1965 did the archaeological team led by Lluís Esteva i Cruañas finish the job. Scientists date the monument back to 3.400-3.200 B.C. The dolmen of Serra Mitjana is one of the landmarks on the archaeologically-themed hiking route in Fitor.
