The Sierra de Piños, Chalchiguitéc, Los Angelos, Plateros, and other metallic deposits were formerly celebrated for their productive value; but they are now either partially or entirely abandoned.
We may deduce some interesting statistical information from the labors of Berghes in regard to the mineral wealth of Zacatécas and the productiveness of its mines. According to the tables of this writer, published in 1834, it appears that from the year
| 1548 to 1810 | the mines of this region produced | $588,041,956 | |
| 1810 to 1818 | """ | 20,060,363 | |
| 1818 to 1825 | """ | 17,912,475 | |
| 1825 to 1832 | """ | 30,028,540 | |
| ————— | |||
| $656,043,335 | |||
| These rates gave an annual mean product, from | |||
| 1548 to 1810 | """ | of$2,244,434 | |
| 1810 to 1818 | """ | "2,507,545 | |
| 1818 to 1825 | """ | "2,558,925 | |
| 1825 to 1832 | """ | "4,003,128 | |
It will be seen by reference to our table on page 88 of this volume, that the value of the products of Zacatécas in the ten years from 1835 to 1844, was $43,384,215; giving a mean annual rate of $4,338,421, and exhibiting the important fact, in spite of revolutionary troubles and consequent social, commercial and industrial disorganization, that the mineral yield of this region, instead of diminishing, has steadily increased with every year. In 1845, the Mint in Zacatécas issued $4,429,353.
The State of Zacatécas contains some remarkable remains of Indian architecture on the Cerro de los Edificios, situated two leagues northerly from the village of Villanueva, twelve leagues south-west from Zacatécas, and about one league north of La Quemada, at an elevation of 7,406 feet above the sea.
RUINS NEAR QUEMADA.
"We set out," says Captain Lyon, in a volume of his travels in Mexico, "on our expedition to the Cerro de los Edificios under the guidance of an old ranchero, and soon arrived at the foot of the abrupt and steep rock on which the buildings are situated. Here we perceived two ruined heaps of stones, flanking the entrance to the causeway, ninety-three feet broad, commencing at four hundred feet from the cliff.
"A space of about six acres had been enclosed by a broad wall,
