1675 Fall River Rd MREstes Park, CO 80517 Phone: +1 970-586-5759Fax: +1 970-586-0394Toll Free: +800-586-5212 Hotel E-mailHotel Website Commission Rooms Rates - 18 $109-$299 (USD) Hoteliers! Is your information accurate? Update Here Sunnyside Knoll Resort Location & Neighborhood Estes Park/Rocky Mtn Natl Park. Boulder