Green Bank Telescope. For the 1963 Centennial of the State, it hosted two high school graduate delegates from each of the 50 States at the National Youth Science Camp near Bartow, and has continued this tradition ever since. The main building of Weston State Hospital is the largest hand-cut sandstone building in the western hemisphere, second worldwide only to the Kremlin in Moscow. Tours of the building, which is a National Historic Landmark and part of the National Civil War Trail, are offered seasonally and by appointment year-round. West Virginia has numerous popular festivals throughout the year. Resources One of the major resources in West Virginia's economy is coal. According to the Energy Information Administration, West Virginia is a top coal producer in the United States, second only to Wyoming. West Virginia is located in the heart of the Marcellus Shale Natural Gas Bed, which stretches from Tennessee north to New York in the middle of Appalachia. As of 2017, the coal industry accounted for 2% of state employment. Nearly all the electricity generated in West Virginia is from coal-fired power plants. West Virginia produces a surplus of electricity and leads the Nation in net interstate electricity exports. Farming is also practiced in West Virginia, but on a limited basis because of the mountainous terrain over much of the state. Green energy An assessment from 2012 estimated that West Virginia had the potential to generate 8,627 GWh/year from 2,772 MW of 100-meter wind turbines, and 60,000 GWh from 40,000 MW of photovoltaics, including 3,810 MW of rooftop photovoltaics. This was based on then-existing technologies and apparently was based on some assumed requirements for the economic performance of the respective resources. Source: Taxes West Virginia personal income tax is based on federal adjusted gross income (not taxable income), as modified by specific items in West Virginia law. Citizens are taxed within five income brackets, which range from 3.0% to 6.5%. The state's consumer sales tax is levied at 6% on most products except for non-prepared foods. West Virginia counties administer and collect property taxes, although property tax rates reflect levies for state government, county governments, county boards of education and municipalities. Counties may also impose a hotel occupancy tax on lodging places not located within the city limits of any municipality that levies such a tax. Municipalities may levy license and gross receipts taxes on businesses located within the city limits