Mammoth Campground is an 85-site campground in Yellowstone National Park, open year-round. It is located near the park's ...

Yellowstone National Park's nearly 3,500 ... cannot be accessed directly from one of the park's entrances; instead, visitors will have to travel along the Grand Loop Road to reach this area.

The best times to visit Yellowstone National Park are from late April to May as well as September through early October. These shoulder months offer mild weather, fewer crowds and little to no ...