​MONTCEAU-LES-MINES, a town of east-central France, in the department of Saône-et-Loire, 14 m. S. by W. of Le Creusot on the Paris-Lyon railway. Pop. (1906), town, 9701; commune, 26,305. Its importance is due chiefly to its position as the centre of the Blanzy coal basin, on the Canal du Centre, which, is connected with the coalfield by numerous lines of railway. Its manufacturing establishments include weaving and spinning factories, iron and copper foundries, and engineering workshops.