Mill Swamp Indian Horses is a program of Gwaltney Frontier Farm, Incorporated, a 501 (c) 5 non profit breed conservation program. Located outside of Smithfield, Virginia, the program works to prevent the extinction of the Corolla Spanish Mustang, perhaps the oldest and rarest distinct genetic grouping of American horses. Other nearly extinct strains of the earliest horses of America are also preserved and promoted here, including the Marsh Tacky, Shackleford, Grand Canyon, Brislawn, Galiceno, and Choctaw, comprising one of the largest and most diverse herds of Colonial Spanish Horses in the world. From the desert southwest, eastward through Texas, Oklahoma, Mississippi, into the swamps of South Carolina and the sandy beaches of North Carolina--these were the horses that built America. Their ancestors arrived in the New World nearly one hundred years before the English set foot on Jamestown.