Jill's - St. Julien Hotel American  style restaurant, Located at: 900 Walnut Street Boulder, COLORADO   Phone Number 877-303-0900           Hours of Business: Breakfast, Lunch, Dinner           Average Price:                   Jill's - St. Julien Hotel has been picked by our visitors as one of the 10 Best Restaurants in Boulder, COLORADO. This restaurant is available for your dining pleasure. While in Boulder what is your favorite restaurant. Win a FREE Dinner for Two!