ワイオミングの天然記念物・トップ20

Old Faithful is a popular attraction in Yellowstone National Park. On average, it erupts every 90 minutes, spewing a 30-55 meter jet of water. This eruption lasts between 1.5 and 5 minutes.

Truly wild and a natural spectacle

Lower Falls of the Yellowstone, Yellowstone National Park, United States 🇺🇸 The Lower Falls of the Yellowstone River are a majestic sight, plunging dramatically into the Grand Canyon of the Yellowstone. This iconic waterfall, nearly twice the height of Niagara Falls, is a testament to the raw power of nature and the volcanic forces that shaped this unique landscape. Visitors can marvel at its grandeur from various viewpoints, each offering a distinct perspective on the cascading water and the vibrant hues of the canyon walls. The Grand Canyon of the Yellowstone itself is a geological wonder, carved by the mighty Yellowstone River over thousands of years. Its rhyolite rock, altered by hot water and steam, displays a dazzling array of colors, from fiery reds and oranges to soft yellows and browns. Hiking trails wind along the rim and descend into the canyon, providing opportunities for intimate encounters with this breathtaking natural artistry. Exploring this area offers incredible photographic opportunities and a chance to truly connect with the wild heart of Yellowstone. Remember to stay on marked trails for safety and to protect the delicate ecosystem. Early mornings or late afternoons often provide the best light for photography and fewer crowds, allowing for a more serene experience.

The Morning Glory Pool is a hot spring in the Upper Geyser Basin of Yellowstone

The Midway Geyser Basin is part of the giant Yellowstone Caldera and features two significant geothermal landmark: the Excelsior Geyser (a crater that discharges 4,000 gallons of water per minute into the nearby Firehole River) and the Grand Prismatic Spring (the largest hot spring in the US). A short loop on boardwalks takes you into the basin and along these stunning locations. Come early in the day to avoid the crowds.

Morning Glory Pool is a hot spring located in the Upper Geyser Basin of Yellowstone National Park. The crystal blue water in the spring is the result of ultra-purified water that has risen its way through the Earth. The yellowing edges of the pool are caused by bacteria that lives in the extremely hot 157.6°F (69.8°C) water. The spring has been measured to be 23 feet (7 m) deep.

The Firehole River, located in Yellowstone National Park, is known for its warm waters, heated by geothermal features, like hot springs and geysers, that the park is famous for. Flowing through scenic valleys and canyons, it supports a unique ecosystem and offers excellent views and wildlife sighting opportunities. It is also one of the few rivers where swimming is allowed; you can got to the Firehole Swim Area, situated two miles south of Madison Junction on Firehole Canyon Drive. This area typically opening in mid-summer and allows visitors to experience the river’s geothermally-influenced waters. However, high water levels or strong currents can delay or prevent its opening, so checking conditions is crucial. The site features two vault toilets but no additional amenities. Swimming is permitted only during designated hours, and items like floats, food, and personal care products (e.g. soap, shampoo) are prohibited to protect the delicate ecosystem. Life jackets are recommended, and children must be closely supervised.

This 110-foot waterfall is only small in comparison to the lower falls, which are almost 330 feet high. Needless to say the upper falls are still magnificent, and the interesting colors in the canyon walls are the result of this region's constant hydrothermal activity.