Serchio

River in Italy Serchiothe Serchio near LuccaLocationCountryItalyPhysical characteristicsSource • locationMonte Sillano • elevationabout 1,500 m (4,900 ft) MouthTyrrhenian Sea • coordinates43°47′N 10°16′E / 43.783°N 10.267°E / 43.783; 10.267Length126 km (78 mi)Basin size1,525 km2 (589 sq mi)Discharge • average46 m3/s (1,600 cu ft/s) The Serchio (Italian: [ˈsɛrkjo]; Latin: Auser) is the third longest river in the Italian region of Tuscany at 126 kilometres (78 mi), coming after the Arno at 242 kilometres (150 mi) and the Ombrone, 161 kilometres (100 mi). By mean rate of flow, it is the second largest, smaller than the Arno but larger than Ombrone. The principal source forms on the slopes of Monte Sillano, elevation 1,864 metres (6,115 ft) and is joined by a secondary branch, the Serchio di Gramolazzo, at Piazza al Serchio. The river then crosses Garfagnana from north to south, from Sillano to a location beyond Castelnuovo di Garfagnana; from here it continues through the Media Valle touching the municipal borders of the Comune of Barga and crossing the territory of Borgo a Mozzano. In this section of the river, which is dammed in a number of places, it rece