4. Yellowstone 黄石国家公园
Fog from a nearby hot spring nearly conceals two bison grazing on winter grasses in Yellowstone National Park. The park is also home to elk, bighorn sheep, grizzly bears, and other Rocky Mountain fauna.
温泉附近的雾气几乎将黄石国家公园冬日牧场的两头野牛完全笼罩住。这个国家公园也是麋鹿、加拿大盘羊、大灰熊和落基山脉其他动物群的栖息地。