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  2. Mountaintop removal mining - Wikipedia

    en.wikipedia.org/wiki/Mountaintop_removal_mining

    Mountaintop removal site Mountaintop removal site in Pike County, Kentucky. Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining at the summit or summit ridge of a mountain. Coal seams are extracted from a mountain by removing the land, or overburden, above the seams. This process is considered ...

  3. Mountaintop removal mining - en.wikipedia.org

    en.wikipedia.org/.../Mountaintop_removal_mining

    Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining at the summit or summit ridge of a mountain. Coal seams are extracted from a mountain by removing the land, or overburden, above the seams. This process is considered to be safer compared to underground mining because the coal seams are ...

  4. Surface mining - Wikipedia

    en.wikipedia.org/wiki/Surface_mining

    The Siilinjärvi carbonatite complex, [1] an open-pit mine owned by Yara International, in Siilinjärvi, Finland Coal strip mine in Wyoming. Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the ...

  5. Mountain Justice (organization) - Wikipedia

    en.wikipedia.org/wiki/Mountain_Justice...

    It seeks justice because the mountaintop removal (MTR) it opposes is a form of coal mining known as mountaintop removal mining which produces coal sludge toxic waste which is stored in a dam on the mountain and leaches into the groundwater, which poisons the environment, which defaces the top of the mountain, and which is not stopped due to ...

  6. Room and pillar mining - Wikipedia

    en.wikipedia.org/wiki/Room_and_pillar_mining

    After the pillars are removed, the roof (or back) is allowed to collapse behind the mining area. Pillar removal must occur in a very precise order to reduce the risks to workers, owing to the high stresses placed on the remaining pillars by the abutment stresses of the caving ground. Retreat mining is a particularly dangerous form of mining.

  7. Category:Mountaintop removal mining - Wikipedia

    en.wikipedia.org/wiki/Category:Mountaintop...

    Download QR code; Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; ... Pages in category "Mountaintop removal mining"

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  9. Black Diamonds: Mountaintop Removal & The Fight for Coalfield ...

    en.wikipedia.org/wiki/Black_Diamonds:_Mountaintop...

    Black Diamonds: Mountaintop Removal & The Fight for Coalfield Justice is a 2006 documentary film made and directed by filmmaker Chet Pancake. [1] The narration in the film is by actress Lauren Graham. The film is about the impact of mountaintop removal mining on the mountains, environment, and people in the Appalachia area of West Virginia.