Sulphur Collection (page 2)

WY, Yellowstone National Park, Norris Geyser Basin, Porcelain Basin

USA, Yellowstone National Park, Wyoming, Midway Geyser Basin

WY, Yellowstone National Park, Mud Volcano area, dried mud patterns

WY, Yellowstone National Park, Black Sand Basin, Rainbow Pool, and colorful bacterial mat

Sulphur Caldron, Yellowstone National Park, Wyoming, USA

WY, Yellowstone National Park, Upper Geyser Basin, Crested Pool, colorful bacterial mat

Orange Sulphur, Colias eurytheme, adult in on Texas Bluebonnet (Lupinus texensis), Lake Corpus Christi, Texas, USA

Chateau de Montpezat. Pezenas region. Languedoc. An old horse-drawn spraying cart rusting in a court yard. France. Europe

Oceania, New Zealand, North Island, Waiotapu. Champagne Pool

Oceania, New Zealand, South Island, North Island, Bay of Plenty, White Island. Scenic shot of steaming fumarole on White Island Volcano

WY, Yellowstone National Park, Midway Geyser Basin, Colorful Bacterial Mats

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