Yellowstone - rickz
Castle Geyser Erupting, Upper Geyser Basin, Yellowstone National Park

The Upper Geyser Basin has the highest concentration of geothermal features in the park.

Castle Geyser Erupting, Upper Geyser Basin, Yellowstone National Park

The Upper Geyser Basin has the highest concentration of geothermal features in the park.

Castle Geysereruptingeruptioneruptyellowstoneyellowstone national parknational parksteamwatercolorscolorfulorangeredgeyserupper geyser basingeyser hill