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The New Almaden Quicksilver Mining Museum is located in the Casa Grande (big house) in New Almaden. La Casa Grande, an 1854 revival-style mansion designed and built by architect Francis Myers, was the official residence and office of the mine superintendents, as well as a country retreat for wealthy mine investors.
Almaden, named after the ancient Spanish mining town of Almadén, traces its history back to the 1820s, when Mexican miners discovered mercury deposits on Rancho Los Capitancillos, which later led to the establishment of the New Almaden mines. Almaden Valley, known for its abundant parkland, is one of San Jose's most expensive neighborhoods to ...
Almaden Quicksilver County Park is a 4,163 acres (17 km 2) park that includes the grounds of former mercury ("quicksilver") mines adjacent to south San Jose, California, USA. The park's elevation varies greatly: the most used entrances (on the east side of the park) are less than 600 feet (183 m) above sea level , while the highest point in the ...
It was located at the south end of Almaden Valley, near the Santa Teresa Hills. The grant included a large section of the rocky hills upon which a rich source of mercury-carrying cinnabar ore was found in 1844–1845. The discovery was made public and the New Almaden quicksilver mine (mercury mine) began producing a small amount of rich ore in ...
In 1916, a special council was created to operate the mines, introducing new technology and safety improvements. A record production of 82,000 mercury flasks (6.232 million lb or 2.827 million kg) was reached in 1941, just after the Spanish Civil War , using prisoners of war as forced labor. [ 5 ]
The New Almaden mine was taken in possession by Robert Walkinshaw of the New Almaden Mining Company in April 1847 by means of a forged grant document supposedly bearing the signature of the alcalde of Presidio San José, José Dolores Pacheco, who always signed documents "Dolores Pacheco"—the questionable document was signed only "Pacheco ...
Mary Hallock was born November 9, 1847, in Milton, New York, of English Quaker ancestry. A singular girl and youth, she attended the Female Collegiate Seminary in Poughkeepsie, New York, then studied art in New York City at the new Cooper Institute School of Design for Women. By her early twenties she had become established in New York City as ...
Butterworth was president of the Quicksilver Mining Company (QSMC) of New York, which sought the New Almaden Mine near San Jose, California. [1] In August 1863, Butterworth resigned his position as QSMC President and moved to California to become general manager of the company's newly acquired the New Almaden mine, receiving an annual salary of US$25,000 (equivalent to $618,649 in 2023).