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Hot Springs Algae, Mammoth Hot Spring, Yellowstone National Park, Wyoming, USA Royalty Free Stock Photo

Minerva Terrace at Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA Royalty Free Stock Photo

Yellowstone National Park Landscape Panorama of Evening Sun on Minerva Terraces at Mammoth Hot Springs, Wyoming, USA Royalty Free Stock Photo

Yellowstone National Park, Canary Spring at Upper Terrace, Mammoth Hot Springs, Wyoming, USA Royalty Free Stock Photo

Yellowstone National Park, Mammoth Hot Springs with Evening Light on Minerva Terraces, Wyoming, USA Royalty Free Stock Photo

Close up of algae growing in Mammoth Hot Springs, Yellowstone National Park Royalty Free Stock Photo

Yellowstone National Park, Mammoth Hot Springs in Evening Light, Wyoming Royalty Free Stock Photo

Hot Springs Algae, Mammoth Hot Spring, Yellowstone National Park, Wyoming, USA

Yellowstone National Park, Orange Mound Spring in Evening Light at Upper Terrace of Mammoth Hot Springs, Wyoming, USA Royalty Free Stock Photo

Yellowstone National Park, Evening Light on Lower Mammoth Hot Springs, Wyoming, USA Royalty Free Stock Photo

Mammoth Hot Spring in Evening Light, Yellowstone National Park, Wyoming Royalty Free Stock Photo

Hydrothermal area of Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA Royalty Free Stock Photo

Detail of the hydrothermal area of Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA Royalty Free Stock Photo

Yellowstone National Park with Canary Spring at Upper Terraces, Mammoth Hot Springs, Wyoming Royalty Free Stock Photo

Yellowstone National Park with Minerva Terrace Details in Evening Light at Mammoth Hot Springs, Wyoming Royalty Free Stock Photo

Late afternoon light brings out the structures of the long algae strands in a pool on the Upper Terraces of Mammoth Hot Springs in Yellowstone National Park, Wyoming, USA.