 By 1901, quarrying operations had stopped as the quality of the rock diminished and Victorian architecture was no longer in vogue.The Seneca Schoolhouse, a small one-room schoolhouse of red sandstone, was built in 1866 to educate the children of the stone cutters who worked at the quarry.Located in Poolesville, Maryland, it provides tours to schoolchildren so that they can experience a typical school day as it would have been on March 13, 1880.