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  2. Abandoned mine drainages in Colorado - Wikipedia

    en.wikipedia.org/wiki/Abandoned_mine_drainages...

    According to a survey completed by the Colorado Geological Survey between 1991 and 1999, the number of abandoned mines in Colorado is 18,382. [1] The Arkansas Headwaters, Las Animas River, Rio Grande Headwaters, Alamosa, and Uncompahgre were the priority watersheds studied in this survey. [1]

  3. List of ghost towns in Colorado - Wikipedia

    en.wikipedia.org/.../List_of_ghost_towns_in_Colorado

    Colorado ghost towns were abandoned for a number of reasons: Mining towns were abandoned when the mines closed, largely due to the devaluation of silver in 1893. Mill towns were abandoned when the mining towns they serviced closed. Farming towns on the eastern plains were often deserted due to rural depopulation.

  4. Mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Mining_in_the_United_States

    There are tens of thousands of abandoned mines in the United States. Many abandoned mines pose environmental challenges, such as acid mine drainage. In Colorado alone, there are 18,382 abandoned mines. [34] The United States has had many different environmental disasters caused by these mines, such as the 2015 Gold King Mine waste water spill.

  5. Abandoned mine - Wikipedia

    en.wikipedia.org/wiki/Abandoned_mine

    In the United States, there are thousands of abandoned mines. The precise number of abandoned mines in the United States remains unknown, ranging "from the National Park Service's tally of 2,500 on its lands to the Mineral Policy Center's assessment of 560,000 abandoned mines on public and privately owned lands."

  6. Category:Mining in Colorado - Wikipedia

    en.wikipedia.org/wiki/Category:Mining_in_Colorado

    Pages in category "Mining in Colorado" The following 28 pages are in this category, out of 28 total. ... Abandoned mine drainages in Colorado; Argo Tunnel; B.

  7. Abandoned mines are polluting rivers throughout the West ...

    www.aol.com/abandoned-mines-polluting-rivers...

    Right now, if you do work to help remediate abandoned mine drainage, you could wind up liable for not cleaning up all of it. | Opinion

  8. Gilman, Colorado - Wikipedia

    en.wikipedia.org/wiki/Gilman,_Colorado

    Gilman is an abandoned mining town in southeastern Eagle County, Colorado, United States.The Gilman post office operated from November 3, 1886, until April 22, 1986. [3] The U.S. Post Office at Minturn (ZIP Code 81645) now serves Gilman postal addresses.

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

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

    Colorado authorities have identified the ... Individuals who were part of a tour group were then trapped at the bottom of the mine, which is about 1,000 feet deep. State and local authorities ...