Demonstrations by costumed distillers take visitors through the historic process of whiskey-making in this reconstruction of the largest 18th-century distillery in America. George Washington’s Distillery is adjacent to his reconstructed Gristmill, a water-powered mill where Colonial millers grind corn into meal and wheat into flour just as it was done more than 200 years ago. George Washington’s Distillery & Gristmill are located three miles from Mount Vernon.