Purina Farms Loading Map.... Purina Farms500 William Danforth Way - Gray SummitEvents 38.4930961 -90.83170389999998 Address 500 William Danforth Way Gray Summit Missouri 63039 United States Upcoming Events No events in this location Deann Rogers2019-08-13T01:09:45-04:00August 13th, 2019| Share This... FacebookTwitterPinterestEmail