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  2. Caves of Meghalaya - Wikipedia

    en.wikipedia.org/wiki/Caves_of_Meghalaya

    Limestone mining for the cement industry is a major threat to the Caves of Meghalaya, [4] causing a major collapse of the Krem Mawmluh cave, the seventh longest cave in the state of Meghalaya. The "cave-in" stimulated public awareness of the potential threat mining places to the rich scientific, tourism and ecological heritage.

  3. Lucky Knock Mine - Wikipedia

    en.wikipedia.org/wiki/Lucky_Knock_Mine

    The Lucky Knock Mine is a mine located in Okanogan County near Ellisford, Washington. [1] The Lucky Knock Mine is located in the Northern Rocky Mountains, which is a physical geographic province within the Rocky Mountain System. [1] Sometimes the mine can be called the Lawrence Mine. [2] The current owner is E. A. Magill.

  4. Gone winter rockhounding in Washington state? You can find ...

    www.aol.com/gone-winter-rockhounding-washington...

    Washington state is a hotbed for minerals, gemstones, crystals and fossils, making the Evergreen state a popular site for rockhounding. Whether in an official group or going solo, rockhounding is ...

  5. SubTropolis - Wikipedia

    en.wikipedia.org/wiki/SubTropolis

    Dug into the Bethany Falls limestone mine, SubTropolis is up to 160 feet (49 m) beneath the surface. It has a grid of 16-foot-high (4.9 m), 40-foot-wide (12 m) tunnels separated by 25-foot-square (7.6 m) limestone pillars created by the room and pillar method of hard rock mining . [ 1 ]

  6. Ruby Mining District - Wikipedia

    en.wikipedia.org/wiki/Ruby_Mining_District

    Also known as the Salmon Creek District, the Ruby Mining District is an abandoned mining district in north central Washington State, founded in 1887 by Thomas D. Fuller. The principle mined ore was silver, though, copper , lead , and small amounts of gold were also extracted.

  7. List of lime kilns in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_lime_kilns_in_the...

    Sharon Valley Historic District, in Sharon, Connecticut, a small community which grew an iron mining and refining operation during the late 19th century, including a lime kiln; Eastburn-Jeanes Lime Kilns Historic District, Newark, Delaware, NRHP-listed; Orofino Historic District, Orofino, Idaho, NRHP-listed, which includes several lime kilns.

  8. Roche Harbor, Washington - Wikipedia

    en.wikipedia.org/wiki/Roche_Harbor,_Washington

    British Marines quarried and processed limestone at or near Roche Harbor. After the territory dispute was settled in 1872 in favor of the United States, the land encompassing Roche Harbor was homesteaded by Joseph Ruff, 1872–78, and afterward owned by Israel Katz, 1878–79; and brothers Richard and Robert Scurr and their business partners, Alexander, Colin and Donald Ross, 1879-1886. [9]

  9. Category:Mining communities in Washington (state) - Wikipedia

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

    Pages in category "Mining communities in Washington (state)" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes .