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The headline things to do in Yellowstone National Park

From the Yellowstone National Park guide — these are the items that anchor a 1-day visit. For the full breakdown, read the Yellowstone National Park travel guide.

1. Old Faithful & Upper Geyser Basin — Upper Geyser Basin

   The park's iconic geyser erupts every 90 minutes on average (predicted within ±10 minutes by rangers). Beyond Old Faithful itself, the surrounding Upper Geyser Basin contains the world's highest concentration of geysers — Grand Geyser, Castle Geyser, Riverside, and Beehive are all worth the 2-3 hour boardwalk loop. Arrive early or late to avoid the worst crowds.

2. Grand Prismatic Spring — Midway Geyser Basin

   The largest hot spring in the United States and third-largest in the world, famous for its bands of orange, yellow, and emerald green caused by thermophilic bacteria surrounding a deep blue center. The boardwalk gives you close-up views, but the iconic overhead photograph requires hiking the Grand Prismatic Overlook trail (1.2 miles round trip) from the Fairy Falls trailhead.

3. Mammoth Hot Springs — Mammoth (North Entrance area)

   A landscape of travertine terraces formed by hot mineral water depositing calcium carbonate as it cools — the terraces grow and change constantly, sometimes going dry within months. Upper Terrace Drive (closed to RVs) and the Lower Terrace boardwalks cover the main features. Mammoth is also the park's year-round headquarters with elk frequently grazing on the front lawn.

4. Grand Canyon of the Yellowstone — Canyon Village

   A 20-mile-long, 1,200-foot-deep canyon carved by the Yellowstone River, its yellow and rust-colored walls giving the park its name. Artist Point (south rim) offers the classic view of the 308-foot Lower Falls; Inspiration Point and the brink-of-Lower-Falls trail provide other angles. Uncle Tom's Trail (328 steel steps down) takes you close to the thundering falls.

5. Lamar Valley — Lamar Valley (Northeast)

   Often called the "Serengeti of North America" — this broad glacial valley in the park's northeast is the best place in the Lower 48 for wolf watching, and hosts enormous bison herds year-round. Dawn and dusk are essential; wolves are almost never seen midday. Pullouts along the road fill with wildlife photographers and researchers with spotting scopes who will often share views.

6. Hayden Valley — Hayden Valley (Central)

   A wide sub-alpine meadow along the Yellowstone River between Canyon and Lake villages, this is grizzly and bison country. Bison traffic jams are almost guaranteed in summer. Grizzly sightings are most common at dawn and dusk — pullouts allow safe wildlife watching without leaving your vehicle.

7. Norris Geyser Basin — Norris

   The hottest, oldest, and most acidic thermal area in the park, and home to Steamboat Geyser — the world's tallest active geyser, which can shoot 300+ feet into the air during major eruptions (infrequent and unpredictable). The Back Basin and Porcelain Basin boardwalk loops showcase constantly changing thermal features with an otherworldly, barren landscape.

8. Yellowstone Lake — Lake Village

   The largest high-elevation lake in North America at 7,732 feet, with 141 miles of shoreline. Boat tours leave from Bridge Bay Marina, and the historic Lake Yellowstone Hotel (1891) is one of the most elegant lodges in any national park. West Thumb Geyser Basin on the lake's western edge features thermal features right at the water's edge.

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