The capital of the district of _Colotlan_, is San Antonio de Colotlan, containing about 4,000 inhabitants. In this district we also find Santa Maria, a large and populous village lying 5,659 feet above the sea, Huejucar, Cartagena, Tlaltenango and Bolaños, a mining town. The best sea-port of Jalisco is that of San Blas, whose town lies in 21° 32´ 24´´ north latitude and 107° 35´ 48," west longitude from Paris, upon a rock of basaltic lava, 90 feet high, isolated entirely on three sides, and reached by a bad road on the fourth. The haven is land-locked, and the anchoring ground good and deep; but during the rainy season the levels around the rock which is the foundation of the town, become filled with stagnant pools until the whole adjacent country is covered with water. The burning sun of the coast acts rapidly upon these shallow marshes and fills them with insects and miasma. San Blas soon becomes uninhabitable, and its population betake themselves either to Tepic, Guadalajara, or the first elevations of the mountains in the interior. * * * * * The only mining region of any note in Jalisco is that of Bolaños. The mines of Hostotipaquillo, near Tepic, are now abandoned; those of Guichichila, Santa Maria del Oro, Santa Martin and Ameca, in the district of Etzatlan, in the neighborhood of Cocula, are partially wrought. Among the unexplored sites of base and spurious metals in this State, we may mention those found in the vicinity of Compostella, those near the ranchos of _Rosa Morada_ and _Buena Vista_, towards the coast, between the villages of Santiago and Acaponeta, and those near Guajicoria, north of the last named village. The Islands of La Isabela, San Juanico and Marias, lie on the Pacific coast of Jalisco. * * * * *