Explore details about location Old U.S. Route 91. Old U.S. Route 91 is a location situated within the Franklin County alongside other areas such as Winder Reservoir Road, East Cub River Road, North Riverdale Dugway Road. Additionally, some smaller parts of Old U.S. Route 91 include specific areas like Gravel Pit Road, South 2400 East, Carriage Way adding to the diversity of its landscape.