Home › Venues › Whistle Stop Park Whistle Stop Park Tickets Buy tickets for concerts at Whistle Stop Park in Niwot, CO. No Upcoming Events No upcoming events scheduled at Whistle Stop Park. Please contact us with any corrections. Hotels & Lodging Near Whistle Stop Park About the Venue Whistle Stop Park At-a-Glance AddressNiwot, CO 80544United States Map & Directions Advertisement