| Description |
In 1928, Utah Construction Company completed its first project outside of the United States with the 110 mile railroad for Southern Pacific of Mexico. Over the next 30 years, UCC continued to work on projects in Mexico including dams, roads, mining, and canals. The collection contains several booklets and correspondence along with approximately 500 photographs. |
| OCR Text |
Show EXPLORATION AND DEVELOPMENT Exploration in the 1960s There are a number of international mining companies exploring in Mexico, and the more prominent among them can be identified, particularly those that are exploring for copper and fluorspar deposits. In 1964, under the sponsorship of the Government of Mexico and the United Nations Special Fund, regional mapping and mineral investigation was undertaken in central Sonora along the southern extension of the Jerome-Wasatch crustal lineament. This survey resulted in the rediscovery of the La Caridad mineralized area, although the existence of copper in the district had been known for more than 70 years. About 1968, Asarco Mexicana became interested in the potential of La Caridad, and, in 1969, the Mexican Government authorized the formation of a new company, Mexicana de Cobre, for the development of a major open-pit copper mining complex at that location. Comision de Fomento de Minero holds 16 percent of La Caridad and Asarco Mexicana holds 49 percent. The balance is held by Mexican nationals. The 1960s also saw active exploration for silver, fluorspar, and manganese in other parts of Mexico. Current Exploration Sonora Renewed interest in mining can be measured by attendance at the fall meeting of the Mexican Association of Mining, Metallurgy and Geology held in Hermosillo, Sonora, dur-ing October of 1971. More than 1,000 members were in attendance at a three-day session that included the presentation of papers on current mining developments, geology, and exploration. According to the manager of the Hermosillo Comision de Fomento de Minera, the current level of exploration expenditures is about $8 million for the state of Sonora alone. This figure does not include either the La Caridad or Cananea develop-ment type drilling. Furthermore, it is reported that 16 diamond drills are being used in porphyry copper exploration in the state of Sonora, exclusive of the efforts of Anaconda and Asarco. Approximately 75 percent of the drilling contracts are handled by Boyles Bros. Mexicana of Hermosillo. The manager of this company reports that the volume of of drilling business averages close to $1 million per year. Core drilling contracts, under 47 |
