Abyss Pool
The hot spring in Yellowstone National Park is located in the West Thumb Geyser Basin and reaches temperatures of 181 °F (83 °C). It contains alkaline-chloride hydrothermal water and is known for its 53-foot-deep pool accessible via boardwalk.

Abyss Pool Basic Information
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Abyss Pool Mineral Content
What to know about Abyss Pool
What is the location of the hot spring in Yellowstone National Park?
The hot spring is located in Yellowstone National Park within the West Thumb Geyser Basin in Teton County, Wyoming, United States. The geographic coordinates of the hot spring are 44°25′5″N latitude and 110°34′21″W longitude. The site lies within a protected geothermal area managed by the National Park Service, and additional visitor information is available at https://www.nps.gov/yell/index.htm.
What is the temperature of the hot spring in Yellowstone National Park?
The temperature of the hot spring in Yellowstone National Park reaches 181 °F (83 °C). This high thermal value is characteristic of active geothermal systems within the Yellowstone Caldera, where underground volcanic activity heats groundwater to near-boiling levels.
What is the depth of the hot spring pool in Yellowstone National Park?
The hot spring pool in Yellowstone National Park has a recorded depth of 53 feet (16 meters). This vertical measurement indicates a substantial geothermal cavity, which allows for stable thermal stratification and mineral deposition over time.
What are the pool types of the hot spring in Yellowstone National Park?
The hot spring in Yellowstone National Park contains a hot spring pool and an alkaline-chloride hydrothermal pool. These pool types reflect both the thermal and chemical classification of the waters, indicating a dominant presence of dissolved chloride ions and a high pH environment.
What is the water composition of the hot spring in Yellowstone National Park?
The water composition of the hot spring in Yellowstone National Park consists of alkaline-chloride hydrothermal fluids. This chemical profile suggests that the water has interacted extensively with subsurface rock formations, dissolving minerals and emerging with elevated alkalinity and chloride content.
What is the access type to the hot spring in Yellowstone National Park?
The access type to the hot spring in Yellowstone National Park is boardwalk access. Visitors can observe the geothermal features from designated pathways that prevent direct contact with the hot spring while protecting the surrounding fragile environment.
What are the nearby attractions to the hot spring in Yellowstone National Park?
The hot spring in Yellowstone National Park is surrounded by several geothermal and natural attractions. Nearby sites include Yellowstone Lake, West Thumb Geyser Basin, Black Pool, Old Faithful Geyser, and Grand Prismatic Spring. These landmarks form part of the park’s extensive hydrothermal system and attract significant visitor interest year-round.
What is the best season to visit the hot spring in Yellowstone National Park?
The best season to visit the hot spring in Yellowstone National Park is summer. Warmer weather and accessible roads provide optimal conditions for observing geothermal features and exploring the surrounding basin without snow or extreme cold.
What is the number of pools at the hot spring in Yellowstone National Park?
The hot spring in Yellowstone National Park contains one pool. This single geothermal pool serves as the primary feature at the site and represents a distinct hydrothermal formation within the West Thumb Geyser Basin.
What contact information is available for the hot spring in Yellowstone National Park?
The contact information for the hot spring in Yellowstone National Park includes an email address and a phone number. Inquiries can be directed to yvowebteam@usgs.gov or by phone at 360-993-8906. Official park information and visitor resources are available at https://www.nps.gov/yell/index.htm.
What is the entry fee for the hot spring in Yellowstone National Park?
The entry fee for the hot spring in Yellowstone National Park is governed by the national park's general admission pricing. Detailed fee information is listed at https://www.nps.gov/yell/planyourvisit/fees.htm, where visitors can find rates for individuals, vehicles, and passes.
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