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  2. List of show mines - Wikipedia

    en.wikipedia.org/wiki/List_of_show_mines

    Big Opal Mine: New South Wales Lightning Ridge: Black Opal Chambers of The Black Hand New South Wales ... Copper, 300 m shaft; also named: C.M.T. Underground Mine Tour

  3. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    In 1957, Alfonso Ramirez (of Querétaro) accidentally discovered the first opal mine in Jalisco: La Unica, located on the outer area of the volcano of Tequila, near the Huitzicilapan farm in Magdalena. By 1960 there were around 500 known opal mines in this region alone.

  4. Alonso Ramírez - Wikipedia

    en.wikipedia.org/wiki/Alonso_Ramírez

    Alonso Ramírez may refer to: . Alonso Ramírez Vergara (fl. 1594-1602), Roman Catholic prelate in Peru; Alonso Ramírez (ecologist), Costa Rican ecologist and professor Alonso Ramírez (footballer) (born 2001), Mexican footballer

  5. 12 rescued from underground mine after fatality during tour - AOL

    www.aol.com/mine-rescue-underway-trapped...

    A rescue operation in Colorado to bring trapped mining tour visitors out of an underground mine was successful, seven hours after one person died and four others were injured. 12 rescued from ...

  6. Tour guide identified as victim who died in Colorado gold ...

    www.aol.com/tour-guide-identified-victim-died...

    Colorado authorities have identified the person that died in a former gold mine that is now a tourist attraction.. Patrick Weier, a Mollie Kathleen Gold Mine tour guide, died after being trapped ...

  7. Alfonso Ramírez - Wikipedia

    en.wikipedia.org/wiki/Alfonso_Ramírez

    Alfonso Ramírez may refer to: Alfonso Ramírez (count) (died 1185), medieval governor of the Bierzo; Alfonso Lastras Ramírez (1924–1999), Mexican politician; Alfonso Ramírez Cuéllar (born 1959), Mexican politician; Alfonso Ramírez (boxer), Mexican boxer, Boxing at the 1968 Summer Olympics

  8. Tour guide killed after elevator malfunctions underground in ...

    www.aol.com/multiple-people-trapped-underground...

    A tour guide died at a Colorado gold mine after an elevator experienced a mechanical issue hundreds of feet below ground, trapping a dozen tourists for several hours, authorities said. The ...

  9. Dynamic Earth (Ontario) - Wikipedia

    en.wikipedia.org/wiki/Dynamic_Earth_(Ontario)

    Dynamic Earth offers tours of the mine. The tour starts with a seven-story elevator ride descending to a cavern. Then the tour goes through a demonstration mine to showcase the evolution of mining from turn-of-the-century to modern day. The mine's temperature are averages at 13°C (55°F) all year long.