Fauquier, a N. E. county of Virginia, bounded N. W. by the Blue Ridge, and S. W. by the Rappahannock river and one of its branches; area, 680 sq. m.; pop. in 1870, 19,960, of whom 7,856 were colored, ft has a diversified surface, a productive soil, and is rich in minerals. There are several gold mines which have been worked with profit, and beds of magnesia and soapstone have been discovered. It is traversed by the Orange, Alexandria, and Manassas railroad and branches. The chief productions in 1870 were 269,952 bushels of wheat, 824,947 of Indian corn, 180,591 of oats, 37,010 of potatoes, 6,611 tons of hay, 194,986 lbs. of butter, and 39,493 of wool. There were 5,811 horses, 5,325 milch cows, 15,208 other cattle, 12,137 sheep, and 14,289 swine; 19 Hour and 2 saw mills, 6 tanneries, and 6 currying establishments. Capital, Warrenton.