Fifteen Major Attractions Including Four Major National Parks (Yellowstone, Grand Teton, Jackson and Bryce Canyon) and Las Vegas (8 Days, 6 Nights) (游览四大国家公园（黄石、大提顿、杰克逊和布莱斯峡谷）等十五个主要景点以及拉斯维加斯（8天6晚）