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  2. History of anthracite coal mining in Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/History_of_anthracite_coal...

    Prior to the Civil War, the industry involved many small-scale mines with short-term leases resulting in increasing production levels but an overall trend of falling prices. In 1830, anthracite coal was selling for $11 per ton, in 1840 it was $7 per ton, and by 1860 it was $5.50 a ton in NYC, while total production was increasing. [20]

  3. Geology of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Pennsylvania

    The top plate illustrates the tectonic setting for the sediments of Pennsylvania. This section is characterized by the metamorphic rocks that provide much of the bedrock for this area. The oldest exposed rocks in Pennsylvania are found here and consist of the Baltimore Gneiss. [8] These rocks have a complex history and a vast array of different ...

  4. Topsoil - Wikipedia

    en.wikipedia.org/wiki/Topsoil

    The United States loses almost 3 tons of topsoil per acre per year. [16] 1 inch (2.5 cm) of topsoil can take between 500 [17] and 1,000 years [18] to form naturally, making the rate of topsoil erosion a serious ecological concern. Based on 2014 trends, the world has about 60 years of topsoil left.

  5. List of Superfund sites in Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/List_of_Superfund_sites_in...

    State College, Pennsylvania: Centre: 45.09: On-site soil, and on-site and off-site groundwater, sediments, and surface water contaminated with volatile organic compounds and the pesticides kepone and mirex. Polycyclic aromatic hydrocarbons detected in on-site sediments and soil. [4] [5] 12/30/1982: 09/08/1983: N/A: 11/26/2004: N/A PAD000432661

  6. Ralphton, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Ralphton,_Pennsylvania

    Ralphton is an unincorporated community and coal town in Somerset County, Pennsylvania, United States. Quemahoning Coal Company operated at least 10 mines in Ralphton in 1918. Quemahoning Coal Company operated at least 10 mines in Ralphton in 1918.

  7. Pittsburgh coal seam - Wikipedia

    en.wikipedia.org/wiki/Pittsburgh_coal_seam

    [18] [19] By 1830, the city of Pittsburgh consumed more than 400 tons per day of bituminous coal for domestic and light industrial use. [20] In the early 19th century, Pittsburgh coal became the city's primary fuel source: about 250,000 bushels (approximately 400 short tons) of coal were consumed daily for domestic and light industrial use. [ 21 ]

  8. People are moving to Pennsylvania from these states the most ...

    www.aol.com/news/people-moving-pennsylvania...

    Here’s a look at the top five states people are moving to Pennsylvania from, according to the latest Census Bureau estimates: New York (44,807 people) New Jersey (40,517 people

  9. List of U.S. state soils - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._state_soils

    This is a list of U.S. state soils.A state soil is a soil that has special significance to a particular state.Each state in the United States has selected a state soil, twenty of which have been legislatively established.

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