Photographs of Biscuit and Black Sand Basins, Upper Geyser Basin, Yellowstone National Park

Wyoming > Yellowstone National Park > The Southwest > Upper Geyser Basin > Photographs

Wall Pool, Biscuit Basin - large, cloudy spring draining into the Firehole River

License/purchase this photograph; credit Zach Alan

Keywords: Yellowstone National Park, Biscuit and Black Sand Basins, Upper Geyser Basin, Wyoming, rivers, hot springs, hot pools, thermal features, water

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