Abyss Pool

Abyss Pool

The Abyss Pool is a remarkable hot spring located in the West Thumb Geyser Basin of Yellowstone National Park in Wyoming. Plunging to a depth of over 53 feet (16 meters), it is one of the deepest hot springs in the entire park. Its name, referring to a deep 'abyss', is highly appropriate for this dramatic geothermal feature.

Visitors are immediately drawn to the breathtaking color of the pool. The water displays vibrant shades of turquoise blue to emerald green, a result of thermophilic bacteria clinging to the edges and the extreme depth of the clear water in the center. The interplay of light and depth creates this stunning visual effect, which can shift depending on the angle of the sun and the season. Beneath its generally calm surface, powerful heat from the Earth's magma chamber continually fuels the spring.

Set against the scenic backdrop of Yellowstone Lake, Abyss Pool offers an unforgettable panorama, with the expansive lake and the distant Absaroka Mountains. A well-maintained boardwalk safely guides visitors through the geyser basin, allowing for close-up views of these natural wonders while protecting the fragile geothermal ecosystem. It is a must-see for anyone wanting to experience the unique and potent geology of Yellowstone.

Weather…

Best time to visit & climate

The most pleasant time to visit is Jul–Sep.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °C-12-11-7-3410151491-7-12
Rain mm817577828170374052697991

Practical info

Getting thereThe West Thumb Geyser Basin is located along the Grand Loop Road in the southern section of Yellowstone National Park, relatively close to the South Entrance.
Best time to visitFrom late spring to early fall when the park roads are fully open to regular vehicles. Summer is the busiest season.
Good to knowNever leave the established boardwalks. Geothermal areas are highly dangerous, and touching or throwing objects into the water is strictly prohibited.

Tips

FAQ

What is the Abyss Pool?
It is one of the deepest hot springs in Yellowstone National Park, renowned for its intensely turquoise water.
Why is the water such a vibrant color?
The color is created by the depth and clarity of the water absorbing and scattering sunlight, combined with thermophilic (heat-loving) bacteria on the cooler edges.
Where in the park is the pool located?
The Abyss Pool is located in the West Thumb Geyser Basin, situated right on the shores of Yellowstone Lake.
Is it safe to visit the Abyss Pool?
Yes, as long as visitors stay strictly on the designated boardwalks. The water is scalding hot, and the surrounding ground crust can be very thin and fragile.
When is the best time to visit?
The summer months typically offer the best weather. Visiting early in the morning or later in the afternoon helps avoid the largest crowds.

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