• Q: What makes Yellowstone National Park unique?
  • A: Yellowstone National Park encompasses the largest hydrothermal area on the planet, featuring geysers, hot springs, mudpots, and fumaroles.
  • Q: What major geological event shaped Yellowstone National Park?
  • A: Yellowstone was the site of a catastrophic volcanic eruption more than 600,000 years ago, which led to the formation of a giant caldera.
  • Q: How was the Yellowstone caldera formed?
  • A: During the eruption, the magma chamber was partially emptied, causing the roof to collapse and forming a giant caldera that covers most of the park.
  • Q: What role does the magma chamber play in Yellowstone today?
  • A: The partially-molten rock in the magma chamber provides heat for Yellowstone's hydrothermal features, which are constantly changing.
  • Q: Are Yellowstone's geothermal features static?
  • A: No, Yellowstone's geysers and colorful terraces are in constant flux, continuously shaped by ongoing thermal activity.

The Old Faithful and Upper Geyser Basin

The Old Faithful and Upper Geyser Basin

© Ema Kisel for Vacationidea

Upper Geyser Basin in Yellowstone is home to the majority of the world's active geysers. Every visitor stops for a glimpse of the Old Faithful, one of the most famous geysers in the world. The geothermal features are a treat for geologists and travelers alike. Attractions are connected with an elaborate system of boardwalks which lead visitors near colorful pools and geysers at a safe distance. Continue on the boardwalk across Firehole River up Geyser Hill where you can admire Anemone, Beehive, Lion Group and the Heart Spring. Afterwards, the path leads through the Castle-Grand Area which received its name after two prominent geysers: Castle and Grand. The boardwalk continues to the Giant-Grotto Area, Morning Glory-Riverside Area and ends up at Biscuit Basin.

Biscuit Basin

Biscuit Basin

© J. Walsh for Vacationidea

Biscuit Basin was originally named for biscuit-like deposits around the Sapphire Pool, which were blown away by the pool's eruption in 1959. This is one of the hottest pools in Yellowstone, featuring a bright blue color and a large diameter. It's one of the prettiest sights in the park and well worth a stop. The basin features attractions such as Mustard Spring and Jewel Geyser which erupts every 7-10 minutes. The Old Faithful area is about one hour on foot or and a 10-minute drive. Along the way, you can admire numerous active and dormant geysers and pools, including Chromatic and Beauty Pools and Geyser Hill. Once you've explored the area, continue on towards Mammoth Hot Springs, one of the top attractions in the park.

Along the main park road from Madison to Norris, park visitors can admire scenic views of Gibbon River and Gibbon Falls. One can often spot bison and elk in this area. Sometimes a massive bison decides to walk on the main road, stopping traffic in both directions as excited tourists take pictures of the fabulous animal from the safety of their vehicles. Bald eagles, osprey, sandhill cranes and coyotes are also often seen in the area. If you have time, there are several hiking trails. Visit the visitor station at Madison Junction for more information. Gibbon River is a popular fishing spot, featuring wild rainbow trout and brown trout. The river below Gibbon Falls is restricted to fly fishing only.

West Thumb Geyser Basin

West Thumb Geyser Basin

© Ema Kisel for Vacationidea

West Thumb Geyser Basin is a beautiful place to explore in the afternoon.

Thumb Paint Pots

Thumb Paint Pots

© Ema Kisel for Vacationidea

Thumb Paint Pots look like a giant thumb print in the ground. Mudpots differ from hot springs in that their water is much more acidic and dissolves the underground into clay mud. They are constantly changing, passing through periods of activity and inactivity.

Lakeshore Geyser and Lakeside Spring

Lakeshore Geyser and Lakeside Spring

© J. Walsh for Vacationidea

Lakeshore Geyser boils vigorously and almost continuously. The geyser frequently erupts, but only a few feet. The geyser is located next to Yellowstone Lake - follow the outer loop of the trail which passes right next to it. The Lakeside Spring features a palette of colors, ranging from blue to brown. A blue-green pool of thermal water runs off in a brown-yellow spring. Heat-loving microorganisms provide color to thermal features.

Seismograph and Bluebell Pools

Seismograph and Bluebell Pools

© J. Walsh for Vacationidea

Seismograph and Bluebell Pools are located at the West Thumb Geyser Basin in Yellowstone. The two pools are blue in color. The Seismograph pool occasionally collects mud from nearby mudpots. Both can be viewed from the outer loop of the Trail. A steep grade connects the outer loop boardwalk with the inner loop. The two pools are located next to that grade. The bright blue color is due to extremely high temperatures, usually around 165 degrees F.

Fishing Cone

Fishing Cone

© J. Walsh for Vacationidea

Fishing Cone is a hot spring that got its name because men would fish in Yellowstone Lake and then boil their fish in the hot spring on the lakeshore. It can be viewed from the outer loop of the West Thumb Geyser Basin Trail which passes next to the lake. Clearly, fishing is no longer allowed here in order to protect the hot spring from damage and ensure visitor safety. The Big Cone peaks out and can be observed from the outer loop.

Black Pool Is Bright Blue in Color

Black Pool Is Bright Blue in Color

© J. Walsh for Vacationidea

Black Pool at the West Thumb Geyser Basin is one of the most beautiful pools in Yellowstone National Park. It is bright blue in color with steam rising from its hot surface. It got its name when it was actually black. Until 1991 water temperature in this pool was lower so that it was inhabited by dark green and brown thermophiles, which gave the pool black appearance. Water temperature rose in 1991, followed by several eruptions, which made it too hot for thermophiles. Today, the feature is quiet and a popular attraction. The Abyss Pool is 53 feet deep and is one of the deepest hot springs in the park. It was named in 1935 by Chief Park Naturalist C.M. Bauer. It has sloping walls that vary in color from turquoise blue to green and brown. The attraction has gone through two active periods. It erupted in 1987 and several times in 1991/1992. Since that time, it has been quiet.

Yellowstone Lake

Yellowstone Lake

© J. Walsh for Vacationidea

Yellowstone Lake is the largest lake in the park. It covers 136 square miles and is 20 miles long by 14 miles wide. For some of the best views of the lake, visit West Thumb Geyser Basin at sunset. There will be very few visitors at that time and you will be able to enjoy spectacular views, surrounded by geysers and colorful thermal pools. In the summer, look for bald eagles and osprey along the shoreline. Xanterra Parks & Resorts offers guided fishing and boat rentals at Bridge Bay Marina. Call 307-344-7311 for more information. The lake features 110 miles of shoreline, but it remains too cold for swimming year-round. It completely freezes over in the winter. This area is home to the largest population of wild cutthroat trout in North America. Several species, including the cutthroat trout, are subject to catch-and-release-only fishing rules in the park. For more information and fishing permits, visit www.nps.gov. From here, the drive to the Old Faithful Inn takes anywhere from 30 minutes to one hour in the summer, depending on the traffic and road repair work. There are a few picnic areas and scenic turnouts from which visitors can admire the park landscape. The road from West Thumb to Old Faithful crosses the Continental Divide two times: at 8,391 feet and at 8,262 feet. One the way, you can admire views of rivers, forests, lakes and waterfalls.

The South Entrance Offers a Dramatic Way into Yellowstone

The South Entrance Offers a Dramatic Way into Yellowstone

© J. Walsh for Vacationidea

Located at an elevation of 6,886 feet (2,099 m), The South Entrance offers a dramatic entrance. You will drive along the scenic Lewis River canyon, Lewis Falls and Lewis Lake. There are several scenic turnouts where you can pull over and take in the view.

Yellowstone Travel Tips

  • How should visitors prepare for Yellowstone's high altitude?
    • Yellowstone National Park is at a high altitude, and most visitors need a couple of days to adjust. Initially, plan for short walking trips and drink plenty of fluids, especially on warm summer days.
  • What precautions should be taken for the weather?
    • The weather can change quickly from clear skies to a thunderstorm. The sun is strong at high altitude, so wear a hat and sunscreen.
  • How long does it take to drive across Yellowstone?
    • Each road segment takes about 45 minutes to drive by car. During the summer, road repairs may cause delays, so check for updates at visitor centers.
  • When is the best time to visit Yellowstone?
    • Summer is peak season. Park roads and entrances are least crowded before 11 AM and after 4 PM.
  • What activities can visitors enjoy in Yellowstone?
    • Activities include fishing, boating, hiking, horseback riding, and wildlife watching.

Frequently Asked Questions

  • What's the weather like in Yellowstone?
    • Yellowstone sits at an altitude of over 7,500 feet. Summers have daytime temperatures in the 70s and 80s, but nights can drop below freezing. Winters are very cold, with temperatures ranging from 0 to 20°F and snowfall averaging 150 inches per year.
  • What wildlife can be seen in Yellowstone?
    • Yellowstone is home to bison, elk, wolves, bears, coyotes, moose, bobcats, and mountain lions. Sightings are unpredictable, and visitors should exercise caution near wild animals.
  • Where can visitors spot bison?
    • Yellowstone has around 3,600 bison. They roam grassy areas in summer and seek warmth near geyser basins in winter. For safe viewing, use binoculars or watch from your car, especially on Blacktail Plateau Drive.
  • How can visitors help prevent wildfires?
    • Fires are often considered a natural part of Yellowstone’s ecosystem. While some fires are caused by humans, most occur due to lightning strikes.

Yellowstone Lodging

  • How many hotels and lodges are in Yellowstone?
    • There are nine unique lodges and hotels, all operated by Xanterra Hotels and Resorts. Reservations can be made through Xanterra at 307-344-7311 or www.travelyellowstone.com.
  • What is special about Old Faithful Inn?
    • The Old Faithful Inn is a national historic landmark located near the famous Old Faithful geyser. It features a restaurant and gift shop.
  • Which is the oldest hotel in Yellowstone?
    • The Lake Yellowstone Hotel, built in 1891 and restored in 1990, is the oldest hotel in the park. It offers 1920s-style rooms and is located on the shore of Yellowstone Lake.
  • Which lodge remains open in winter?
    • Mammoth Hot Springs Hotel is the only lodging facility accessible by car in winter. Guests can enjoy snowshoeing, ice skating, and skiing in the surrounding area.
  • What is unique about Grant Village?
    • Grant Village was built in 1984 and named after President Ulysses S. Grant. It consists of six two-story buildings with 50 rooms each, along with two restaurants, a lounge, and a gift shop.

Map:



Best Time to Visit Places to Stay Top Activities
Spring (March-May) – Cooler temperatures with fewer crowds, great for wildlife viewing. Old Faithful Snow Lodge – A cozy lodge near the iconic geyser. See baby animals in Lamar Valley – Watch bison calves and bear cubs in the wild.
Summer (June-August) – Warm and perfect for hiking, but busiest season. Lake Yellowstone Hotel – A historic hotel with stunning lake views. Explore Grand Prismatic Spring – Visit Yellowstone’s most colorful hot spring.
Fall (September-November) – Crisp air, fewer tourists, and amazing foliage. Mammoth Hot Springs Hotel – A great spot with easy access to geothermal areas. Drive through Hayden Valley – A prime location for spotting elk and wolves.
Winter (December-February) – Cold and snowy, ideal for a unique winter wonderland experience. Snow Lodge & Cabins – The best winter lodging inside the park. Take a snowcoach tour – Experience the park’s geothermal wonders in a winter setting.


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