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El Camino Real de Tierra Adentro (English: The Royal Road of the Interior Land), also known as the Silver Route, [1] was a Spanish 2,560-kilometre-long (1,590 mi) road between Mexico City and San Juan Pueblo (Ohkay Owingeh), New Mexico (in the modern U.S.), that was used from 1598 to 1882. It was the northernmost of the four major "royal roads ...
Opal is a hydrated amorphous form of silica (SiO 2 · n H 2 O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals. It is deposited at a relatively low temperature and may occur ...
La Negra is a silver mine in Querétaro, Mexico. [1] The mine has thirteen known ore bodies, overwhelmingly of silver, but also with smaller quantities of gold, zinc and lead. [2] The mine has a processing mill that can process 3,000 tons-per-day. [3] Tailings from the mine are held behind five tailings dams. [1]
Tequisquiapan (Spanish pronunciation: [tekis'kjapan]; Otomi: Ntʼe) is a town and municipality located in the southeast of the state of Querétaro in central Mexico.The center of the town has cobblestone streets, traditional rustic houses with wrought iron fixtures, balconies, and wooden windowsills, which is the legacy of its 300-year heritage as a colonial town populated mostly by indigenous ...
143928. Website. sanjuandelrio.gob.mx. San Juan del Río is a city (2010 census pop. 241,699) and administration of the surrounding San Juan del Río Municipality (pop. 208,462) in the central Mexican state of Querétaro. The population in for the municipality is 268,408 as of 2015. The city and its municipality have the second-highest ...
There are thirteen principal mining areas: Tlalpujahua, Angangueo, Los Azufres, Real de Otzumatlán, Tzitzio, Tiámaro, El Bastán, San Diego Curucupacéo, Inguarán, Las Truchas, and La Minita de Coalcomán. Michoacán is the second-largest producer of coke and third-largest producer of iron, which are essential to the steel industry, in Mexico.
One economic activity important to both was the mining of cinnabar (mercury sulfate) which was highly prized as a red pigment in the pre Hispanic period. [15] [73] [74] Las Ranas was established first, reaching its height between the years 200 and 600, but remained an inhabited city until 1000. The main political buildings were constructed on ...
Aden Crater is a small shield volcano located in Doña Ana County, about 25 miles (40 km) southwest of Las Cruces, New Mexico. [3] It is located in the northwest part of the Aden-Afton basalt field, which is part of the central area of the Potrillo volcanic field. [4][5] A fossilized ground sloth, [6] now at the Peabody Museum, was found in a ...