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West Virginia County
Grant County includes the headwaters of the North Branch and tributaries of the South Branch of the Potomac. One major difference between the branches is the presence of coal in the hills of the North Branch and the absence of coal in the South Branch. As a result, coal mining activities severely polluted the North Branch for more than a century. The South Branch, to the east of Knobly Mountain, is relatively unpolluted and popular for recreational activities. The county seat of Grant County is Petersburg, near where two major forks of the South Branch meet. Grant County is bounded by the Potomac and Mineral County to the north; Hardy County to the east; Pendleton County to the south; and Tucker County to the west.