The Yellowstone National Park in Wyoming and Montana.

Above: Old Faithful Geyser during one of its impressive eruptions.

Below: The Yellowstone River flows through Hayden Valley in the east of the park.

NORRIS GEYSER BASIN - Steamboat Geyser NORRIS GEYSER BASIN
Vixen Geyser in Norris Geyser Basin Mammoth Hot Springs Terraces Buffalo Plateau Buffalo Plateau Yellowstone River Lower Yellowstone Falls from Grand View Point Madison River Madison River Madison River at Sunrise Fountain Paint Pot Upper Geyser Basin Firehole River Old Faithful Geyser Madison River at Sunrise Steambot Geyser Cistern Spring Cistern Spring Cistern Spring >