Old Millstream Inn 3 years ago ID: #421065 Listed In : Hotels, Resorts & Restaurants 912 S Main St, Saint Charles, MO 63301, USA 636-946-3287 http://oldmillstreaminnmo.com Business Description Bar And Restaurant in Saint Charles, MO Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : American Restaurant Bar and Restaurant Vintage Bar Outside Patio Scenic Shaded Patio