The mines of Paris (in French carrières de Paris — "quarries of Paris") comprise a number of abandoned, subterranean mines under Paris, France, connected together by galleries. Three main networks exist; the largest, called the grand réseau sud ("large south network"), lies under the Ve, VIe, XIVe and XVe arrondissements, a second under the XIIIe arrondissement, and a third under the XVIe, though other minor networks are found under the XIIe, XIVe and XVIe for instance. The overwhelming majority of the product was gypsum, used to make "plaster of paris".
Exploring the mines is prohibited by the prefecture and penalised with heavy fines. A limited part of the network 1.7 kilometres (1.1 mi) has been used as an underground ossuary, known as the catacombs of Paris. The catacombs were temporarily closed between September and 19 December 2009 due to vandalism, after which they could be legally visited again from the entrance on Place Denfert-Rochereau. The entire subterranean network is commonly but mistakenly referred to as "the catacombs". Despite restrictions, Paris' former mines are frequently toured by urban explorers popularly called cataphiles.