Yellowstone National Park

Yellowstone National Park, established in 1872 as America's first national park, spans nearly 3,500 square miles across Wyoming, Montana and Idaho. The park is known for its erupting geysers, colorful hot springs, waterfalls, and abundant wildlife. In Yellowstone, you can watch Old Faithful erupt, observe grizzly bears in Lamar Valley, or hike through the backcountry. The park's unique landscape, shaped by volcanic activity, showcases Earth's geologic processes in action.

Geothermal Features

Yellowstone sits atop a massive supervolcano, resulting in the world's largest concentration of geothermal features. The park contains over 10,000 hydrothermal sites and half of the planet's active geysers within its boundaries. Old Faithful geyser erupts roughly every 90 minutes, shooting water up to 180 feet in the air. The Grand Prismatic Spring, the largest hot spring in the United States, displays striking colors created by heat-loving microorganisms. At the Norris Geyser Basin, you can see the park's most extreme thermal features, including bubbling mud pots and steaming fumaroles. The boardwalks at Mammoth Hot Springs allow you to view intricate travertine terraces formed by mineral-rich water.

Wildlife Viewing

Yellowstone has the largest concentration of mammals in the lower 48 states. Herds of bison roam freely, often causing traffic slowdowns on park roads. Look for elk, moose, bighorn sheep, and pronghorn antelope grazing in meadows. The park's top predators include grizzly bears, black bears, and wolves. Lamar Valley is particularly known for its high number of animals. Remember to keep a safe distance - at least 100 yards from bears and wolves, and 25 yards from other wildlife. Early morning and dusk are typically the most active times for animal sightings.

Hiking Trails

You can explore over 900 miles of hiking trails in Yellowstone, suitable for various skill levels. The 1.5-mile roundtrip trail to the Grand Canyon of the Yellowstone's Artist Point provides views of the 308-foot Lower Falls. The 21-mile Sky Rim Trail takes you through the Gallatin Range. The 4-mile roundtrip Fairy Falls Trail leads to one of the park's tallest waterfalls and includes an overlook of Grand Prismatic Spring. When hiking, carry bear spray, hike in groups, and make noise to alert wildlife of your presence.

Accommodation Options

You can choose from various lodging options in Yellowstone. The Old Faithful Inn, known for its stone fireplace and wooden architecture, is located near the famous geyser. Lake Yellowstone Hotel sits on the shore of Yellowstone Lake. The park has 12 campgrounds with over 2,000 sites. Popular campgrounds like Madison and Bridge Bay often reach capacity months in advance, so make early reservations. The Mammoth Campground remains open throughout the year. Backcountry camping permits allow for exploration of Yellowstone's remote areas, but require careful planning and adherence to bear safety guidelines.

Seasonal Considerations

Each season in Yellowstone offers different experiences. Summer (June-August) is the busiest period, with warm weather and all facilities open. Fall (September-October) brings cooler temperatures, fewer visitors, and changing foliage colors. Winter (November-April) allows for activities like cross-country skiing and snowmobiling. Spring (May-early June) is when wildlife becomes more active after winter and waterfalls are full from snowmelt. Be aware that many roads and facilities close in winter, with only the North Entrance open year-round to regular vehicles.