National Park & Nature

Abyss Pool

📍 West Thumb, Yellowstone NP, WY, USA

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3.6/ 5.0

★★★★☆

Quick Facts

Location: USA, Wyoming
Category: National Park & Nature
Duration: 30分钟
Opening Hours: Yellowstone open year-round partial; best May-Oct
Ticket Price: Yellowstone park entry $35/vehicle
Address: West Thumb, Yellowstone NP, WY, USA
Coordinates: 44.4182, -110.5725

Introduction

Abyss Pool, located in the Lower Geyser Basin of Yellowstone National Park in Wyoming, is one of the park's most celebrated large thermal pools. The pool measures about 12 meters in diameter and over 15 meters in depth, with water displaying a stunning deep blue-green hue reminiscent of a giant eye gazing at the sky, hence the name "Abyss." Abyss Pool is a typical geyser-type thermal feature, with water temperature consistently above 80 degrees Celsius. The pool periodically overflows with minor eruptive activity, though it does not produce regular large eruptions. The orange and yellow bands at the pool's edge are formed by thermophilic bacteria and mineral deposits, creating a striking color contrast with the deep blue center. A well-constructed boardwalk surrounds Abyss Pool, allowing visitors to observe the changing colors and steaming water up close. In early morning and late afternoon, the steam creates dreamlike light effects in low-angle sunlight, a favorite moment for photographers.

✨ Highlights

Deep Blue-Green Pool

The water displays a stunning deep blue-green hue, like a giant eye gazing at the sky, hence the name Abyss.

Thermophilic Bacteria Color Bands

Orange and yellow edge bands formed by thermophilic bacteria and minerals contrast with the deep blue center.

Periodic Overflow Activity

The pool periodically overflows with minor eruptive activity; water temperature exceeds 80 degrees Celsius year-round.

Dreamlike Steam Light Effects

In early morning and late afternoon low-angle light, steam creates dreamlike effects, ideal for photography.

Heart of Lower Geyser Basin

Abyss Pool is a key feature of the Lower Geyser Basin, easily combined with Fountain Paint Pot and others.

🛈 Practical Info

→Transport：From Madison Junction on Lower Geyser Basin road

→Best Time：Early morning and late afternoon for best light

→Trail：Boardwalk around the pool, wheelchair accessible

→Opening Hours：Yellowstone open year-round partial; best May-Oct

→Ticket Information：Yellowstone park entry $35/vehicle

💡 Tips

• The thermal crust is thin and extremely dangerous; strictly stay on the boardwalk.

• Morning low-angle light and steam create the best photography conditions.

• Pair Abyss Pool with Fountain Paint Pot and Great Fountain Geyser.

• Yellowstone has frequent bison and elk; maintain safe driving distance.

FAQ

What are the opening hours of Abyss Pool?

Yellowstone open year-round partial; best May-Oct

How much is the admission for Abyss Pool?

Yellowstone park entry $35/vehicle

Any practical tips for visiting Abyss Pool?

The thermal crust is thin and extremely dangerous; strictly stay on the boardwalk. Morning low-angle light and steam create the best photography conditions.