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The lawsuit says the United States Gypsum Co., on Sandusky Bay, failed to maintain underground mines that caused dangerous sinkholes near State Route 2, costing the Ohio Department of ...
Ohio County Mine Ohio County Coal Underground West Virginia 6,046,582 Dry Fork Mine: Western Fuels Association [12] Surface Wyoming 6,045,618 Gibson South: Gibson County Coal Underground Indiana 5,955,676 Sufco: Arch Coal [4] Underground Utah: 5,883,975 Bull Mountains Mine No 1: Signal Peak Energy Underground
Unlike other mines in Ohio, Century Mine used longwall technology that enabled it to operate with relatively fewer workers. [4] The mine had applied for a permit to extend operations by five years in 2017 and expected reserves to last for another 35 years. [6] Century Mine was the site of a fatal accident in 2011 [7] and another in 2013. [8]
NMMR's oldest mine: 1792 anthracite coal, "Old Mine." One of NMMR's oldest mine maps: 1859 anthracite coal map from Hazleton Coal Co. The NMMR contains digital and microfilm maps of surface and underground coal, metal, and non-metal mines throughout the United States. Some of the information that can be obtained from the repository includes:
Old mines pose myriad dangers, with 381 people killed and 152 injured at abandoned mine sites nationwide between 2000 and 2013, according to the U.S. Bureau of Land Management. Victims can fall into hidden shafts, get lost in underground tunnels or perish from poisonous gases present in many old coal mines.
Location of surface coal mines in the US Locations of underground coal mines in the US Trends in underground versus surface mining of US coal, 1949–2011. The hardest coal, anthracite, originally used for steel production, heating, and as fuel for ships and railroads, had by 2000 dwindled to an insignificant portion of production.
Mine subsidence has caused billions of dollars in damage in the U.S. In Pennsylvania, where mining dates to the late 1700s, coal was mined in nearly half of the state’s 67 counties and there are at least 5,000 abandoned underground mines, leaving behind hazards that officials say can arise at any time.
Lundin Mining: Underground mine producing nickel and copper concentrates 18 (2018) [8] 15 Phoenix Lander County, Nevada: Newmont Mining Corporation: Gold-copper ore, concentrated and leached 16 (2018) [6] 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10–15 (2018) [9] 17 Miami: Gila ...