About a league and a half from the Puente Nacional, or National Bridge, to the left of the high road in the midst of a dense forest, and near the banks of the stream known as the Rio del Puente, Don José Maria Esteva found some interesting remains of antiquity in November of 1843. They had been visited in 1819 or '20, by a priest, named Cabeza de Vaca, who was then curate at Puente Nacional, but from that period until 1843, they had been entirely lost sight of. The temple or teocalli, is situated on the top of a small mount, elevated about one hundred and fifty feet above the level of the stream, which runs at its feet. In consequence of the inequality of the surface of the soil, the edifice is thirty-three Spanish feet high, on some of its sides, and forty-two on others. It fronts towards the east, and its platform, or upper level, is reached by a stairway of thirty-four steps, so steep as to be almost perpendicular to its base. The platform is forty-eight Spanish feet broad, and seventy long. The semi-circumference of the base is stated to be one hundred and six feet. The edifice is surrounded by six stairways, one foot broad, and the distance between each step or stage of the body of the teocalli, is about seven feet high nearest the base, their height diminishing, however, as you ascend to those nearest the platform. The whole structure is built of lime, sand and large stones taken from the bed of the river, and although shrubs have grown both on the platform and on the stairways, this interesting relic of antiquity has been so completely protected, that its form is still perfectly preserved. At first sight the edifice would seem to be perfectly solid, yet upon examination it has been found to be hollow, and that its ancient entrance was from the west. This entrance, however, is so small that notwithstanding the efforts of laborers who were employed by the explorer to clear the fallen rubbish and open a path, they were unable to penetrate the whole of the interior chambers. The short time they were enabled to devote to this work, and the fear of the Indians to encounter wild beasts and serpents in the interior of the temple, deterred Señor Esteva from further efforts, and thus, perhaps, one of the most perfect remains of antiquity on the east coast of Mexico is still very inadequately described.[53] [Illustration: PUENTE NACIONAL.] THE STATE OF TAMAULIPAS. This State was known, previous to the revolution, as the Itendencia de San Luis Potosi, and included the colony of Nuevo Santander. It is now bounded on the north by the North American State of Texas; on the north-west by the Mexican State of Coahuila; on the west by the States of New Leon and San Luis Potosi; on the south by San Luis Potosi and Vera Cruz; and, on the east, by the Gulf of Mexico. The breadth of the State varies from twelve to fifty-five leagues.