Business Directory Go back to directory. 600 Cafe 600 Cafe Contact: Butch & Gloria Grenz, Owners Work 600 Main Street Miles City MT 59301 work Work Phone: (406) 234-3860work BiographyThe Grenz Family Diner has been open, and in the same family, since 1946. Family Dining Cafe, open since 1946. Hours: M-Sat 5:00am – 2:00pm – Sunday 6:00am-2:00pm NotesVENUE SPACE Seating: Approximately 50 Amenities: Full menu Call 234-3860 to reserve (restaurant closes at 2:00pm daily) MILES CITY VENUES