Grand Loop Road photo
ParkWyoming, US

Grand Loop Road

Experience Yellowstone National Park's heart on the legendary Grand Loop Road.

About

Experience Yellowstone National Park's heart on the legendary Grand Loop Road. This iconic 142-mile figure-eight shaped scenic drive provides unparalleled access to the park's most famous natural wonders and abundant wildlife. It's a journey through dramatic landscapes, from steaming geyser basins to vast, wildlife-rich valleys, making it the ultimate way to explore America's first national park.

Along the Grand Loop Road, you'll encounter breathtaking geothermal features like the erupting Old Faithful Geyser and the vibrantly colored Grand Prismatic Spring, the largest hot spring in the United States. The road also leads to the majestic Grand Canyon of the Yellowstone, offering stunning views of its Upper and Lower Falls plunging into the colorful canyon. Beyond these geological marvels, vast meadows such as Hayden Valley and Lamar Valley, often dubbed "America's Serengeti," provide prime opportunities to spot iconic wildlife, including bison, elk, bears, and even wolves.

Visiting the Grand Loop Road is an unforgettable adventure, offering a constantly changing panorama of natural beauty and an intimate connection with the wild spirit of Yellowstone. Each bend in the road reveals a new vista, a steaming fumerole, or an unexpected wildlife encounter, leaving visitors with lasting memories of the park's immense scale and unique ecological diversity. It’s more than just a drive; it's an immersive journey into one of the world's most dynamic ecosystems. Planning to visit? Download the Snappit app to identify the wildlife you spot in real-time.

The Grand Loop Road, which forms the primary road system within Yellowstone National Park, has a notable history rooted in the park's early development. Much of the approximately 140-mile system was initially conceived and planned by Captain Hiram M. Chittenden of the U.S. Army Corps of Engineers. This planning took place during the early days of the park when it was under military administration, shaping the access routes to Yellowstone's major attractions. The road was formally named by Harry W. Frantz in 1923, who served as the park's publicist before embarking on a career as a journalist. Today, the Grand Loop Road incorporates unsigned portions of several U.S. Highways, including US 20, US 89, US 191, and US 287, connecting visitors to all major features of the park and its five entrances.

What to do here

Drive the scenic route, stop at numerous pullouts for photography and wildlife watching, explore geothermal areas via boardwalks, hike to overlooks for panoramic views, and visit visitor centers for educational exhibits.

Seasonal info

Spring (Mid-March to Mid-June): Roads begin to open gradually from mid-April, but some sections may still be closed until late May. Characterized by melting snow, baby animals, and fewer crowds, but can be muddy and cold.

Summer (Late May to Early September): All roads and facilities are typically open, best weather for activities, but also the busiest time with significant crowds.

Autumn (September to Early November): Cooler temperatures, fewer crowds, and vibrant fall foliage, with excellent wildlife viewing opportunities, especially elk rut. Roads start to close in early November, except the section between the North and Northeast Entrances.

Winter (November to March): Most of the Grand Loop Road is closed to regular vehicle traffic, but the section between Mammoth Hot Springs and the Northeast Entrance remains open. Snowcoaches and snowmobiles offer unique access to interior portions, allowing for serene, snow-covered landscapes and excellent wildlife tracking.

Accessibility

Many major attractions, including Old Faithful, Grand Prismatic Spring (via boardwalks and the overlook trail), and parts of the Grand Canyon of the Yellowstone (like Artist Point), have paved paths or boardwalks that are generally wheelchair-accessible or offer easy walks to viewpoints. Some sections of the Grand Loop Road are accessible for RVs, though parking can be challenging at popular spots.

Don't miss

1

Old Faithful Geyser (Upper Geyser Basin)

The world-famous geyser erupting approximately every 98 minutes.

2

Grand Prismatic Spring (Midway Geyser Basin)

The largest hot spring in the US, known for its vibrant rainbow colors.

3

Grand Canyon of the Yellowstone (Upper and Lower Falls)

Spectacular waterfalls (Lower Falls plunges 308 feet) and colorful canyon views from viewpoints like Artist Point and Brink of the Lower Falls.

4

Mammoth Hot Springs

Unique travertine terraces formed by hot, mineral-rich water.

Wildlife you might spot

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Good to know before you go

Start Early

Begin your day before 7 AM to beat the crowds at popular attractions like Old Faithful and Grand Prismatic Spring, and to increase your chances of seeing wildlife when animals are most active.

Pack Binoculars or a Spotting Scope

Many animals, especially wolves and bears in Hayden and Lamar Valleys, are often at a distance, so optics greatly enhance viewing.

Fuel Up Frequently

Gas stations are available at major hubs (e.g., Fishing Bridge, Canyon Village, Mammoth), but they are far apart. Top off your tank often to avoid running out.

Expect Wildlife Jams

Be prepared for traffic delays caused by animals crossing the road. These "bison jams" are common and part of the Yellowstone experience, so be patient and enjoy the unexpected wildlife encounters.

Stay on Boardwalks and Maintain Distance: Always remain on designated boardwalks in geothermal areas for your safety and to protect fragile thermal features. Maintain a safe distance from all wildlife (at least 25 yards from bison/elk, 100 yards from bears/wolves).

Bring Snacks and Water

While food options are available, lines can be long. Packing a picnic and plenty of water will save time and allow for flexible stops at scenic pull-offs.

Frequently asked questions

The must-see attractions along Yellowstone's Grand Loop Road include the iconic Old Faithful Geyser, the colorful Grand Prismatic Spring, the breathtaking Grand Canyon of the Yellowstone with its Upper and Lower Falls, the unique Mammoth Hot Springs, and the wildlife-rich Hayden and Lamar Valleys. These sites offer a diverse range of the park's geological wonders and wildlife.
Driving the entire 142-mile Grand Loop Road without stopping takes approximately 7-8 hours. However, to properly experience the major attractions and allow for stops, photos, and potential wildlife jams, it is recommended to dedicate at least 10-12 hours minimum, or ideally 2-4 days, separating the Upper and Lower Loops.
Some of the best places to see wildlife along Yellowstone's Grand Loop Road are Hayden Valley and Lamar Valley. These areas are renowned for sightings of large mammals like bison, elk, bears, and wolves, especially during the early morning and late evening hours. The area around Mammoth Hot Springs is also known for resident elk herds.

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