Eure-Et-Loir, a N. department of France, formed from parts of the ancient provinces of Orleanais, Ile-de-France, and Maine, bordering on the departments of Eure, Seine-et-Oise, Loiret, Loir-et-Cher, Sarthe, and Orne, and comprised in the basins of the Seine and the Loire; area, 2,268 sq. m.; pop. in 1872, 282,-622. Its general aspect is that of a plain, with slight undulations of hill and valley, and its soil is unsurpassed in fertility by any in France. The river Eure, which rises near the W. border in Orne, flows E. and N.. through the northern part, and the Loir rises near the centre and flows S. S. W. to the Loire. The climate is mild, with frequent rains in spring and autumn. There are but small remains of the immense forests which formerly covered its surface. Cereals, the vine, prune, pear, cherry, and apricot are cultivated. It has some cloth manufactories. It is divided into the arrondissements of Chartres, Chateau-dun, Dreux, and Nogent-le-Rotrou. Capital, Chartres.