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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:
State Route 692 (SR 692) was a short north–south state route in southern Ohio that was located entirely within Meigs County. The southern terminus of SR 692 was at SR 143 approximately three miles (4.8 km) northwest of the hamlet of Harrisonville. Its northern terminus was at SR 681 near the hamlet of Pageville.
Mine: State: Coordinates: Town: Owner: Dates: Comments: Pyne Mine: Alabama 33°22′33.18″N 86°55′21.65″W Lacey's Chapel: Woodward Iron Company: 1918–1971 One of only two shaft mines dug in the Birmingham District, and the last ore mine to operate in the region, closing in 1971. Sloss Mines: Alabama 33.39816°N 86.93276°W Red Mountain
Coal deposits were first recognized in the 1740s by early settlers and were mapped as early as 1752. Decreased demand due to increased natural gas production has reduced coal mining in the 2010s, although one underground mine and three surface mines received expansion permits from the state in 2016. Mining and quarrying currently employs 3,546 ...
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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 ...
From 2013 to 2015, the Ohio Department of Transportation paid The Beaver Excavating Company USD $20,668,621.89 to fill the mine with grout, while diverting traffic from Ohio State Route 2 in the process. USG did not contribute funds. [4] As of 2019, USG, which is headquartered in Chicago, Illinois, operates as a subsidiary of Knauf.
The ponds are the result of strip mining, or surface mining for iron ore or coal during the 1960s and 1970s. Hanging Rock Ponds have a total of 51 ponds, scattered throughout a 5,000 acre (20 km 2) national reserve. This area is part of the Wayne National Forest, Ohio's only national forest.