Sun Valley Resort is the first resort in North America to take delivery of the new Prinoth Leitwolf snow groomers. The groomers are equipped with an Environmental Protection Agency (EPA) Tier 4 final engine, the cleanest engine technology in North America. Voted #1 in Grooming in the 2016 SKI Magazine annual readers' poll, acquiring two of the Prinoth Leitwolf reinforces the resort's dedication to exceptional grooming and snowmaking.