Page:Mexico, Aztec, Spanish and Republican, Vol 2.djvu/429

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GOLD—SILVER—COPPER—IRON—GYPSUM—SALT.
357

large extent in all the mountains near Santa Fé; south of it, at a distance of about one hundred miles as far as "Gran Quivara," and north for about one hundred and twenty miles up to the river Sangre de Christo. Throughout the whole of this region gold dust has been abundantly found by the poorer classes of Mexicans, who occupy themselves with washing it from the mountain streams. At present the Old and New Placeres, or places where gold is obtained near Santa Fé, have attracted most attention, and not only gold washes but gold mines, also, are worked there. Yet they are probably the only gold mines at present wrought in the territory. The wash gold when examined was found to contain:

Native Gold, 92.5
Silver, 3.5
Iron and Silex, 4.0
———
100.0;

while the total annual production of both placeres seems to have varied considerably;—in some years it was estimated at from thirty to forty thousand dollars, in others from sixty to eighty thousand, and in latter years, it is reputed to have ascended to even two hundred and fifty thousand.

Several rich silver mines were, in Spanish times, worked at Avo, at Cerillos, and in the Nambe mountains, but none are in operation at present. Copper is found in abundance throughout the country, but principally at Las Tijeras, Jemas, Abiquia, and Gudalupita de Mora, but until a recent period only one copper mine was wrought south of the placeres. Iron, though also existing in very large quantities, has been entirely overlooked. Coal is found in different localities—as in the Raton mountains; in the vicinity of the village of Jimez, south-west of Santa Fé; and in spots south of the placeres. Gypsum, common and selenite, are discovered abundantly, and it is said that most extensive layers exist in the mountains near Algodon, on the Rio Grande, and in the neighborhood of the celebrated Salinas. It is used as common lime for white-washing, while the crystalline or selenite is employed instead of window glass. About one hundred miles, south south-east of Santa Fé, on the high table land between the Rio Grande and Pecos, are some extensive salinas or salt lakes, from which all the salt used in New Mexico is procured. Large caravans from Santa Fé visit this place every year during the dry season, and return heavily laden with the precious deposits. They either sell it for one and sometimes two dollars per bushel, or exchange a bushel of salt for a bushel of Indian corn.