1112-6130 - Castle Geyser steaming, with Old Faithful erupting behind, in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1112-6128 - The cone geyser called Old Faithful erupting, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1112-6127 - The cone geyser called Old Faithful erupting, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1112-6129 - The cone geyser called Old Faithful erupting, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-127 - Evening eruption of Old Faithful geyser with tree and snow, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-132 - Old Faithful geyser under a starry sky, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-131 - Sunrise eruption of Old Faithful geyser with stream, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-133 - Sunrise eruption of Old Faithful geyser with stream, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-125 - Sunrise eruption of Old Faithful geyser with stream, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
832-381115 - Detailed view of the discoloration caused by bacteria and algae on a geyser, Geyser Hill, Old Faithful Area, Yellowstone National Park, Wyoming, USA, North America
832-381381 - Detailed view of the discoloration caused by bacteria and algae on a geyser, Geyser Hill, Old Faithful Area, Yellowstone National Park, Wyoming, USA, North America
762-763 - Old Faithful Geyser, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
801-1400 - Tourists watching Old Faithful Geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1167-320 - Erupting geyser and Old Faithful Inn, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
832-124057 - Eruption of the Old Faithful geyser, Upper Geyser Basin, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA
832-124060 - Eruption of the Old Faithful geyser, Upper Geyser Basin, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA
832-124024 - Tourists in front of an Old Faithful geyser eruption, Upper Geyser Basin, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA
832-124059 - Eruption of the Old Faithful geyser, Upper Geyser Basin, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA
832-124056 - Eruption of the Old Faithful geyser, Upper Geyser Basin, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA
831-1036 - Old Faithful Geyser erupting in summer evening light, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
831-1037 - Old Faithful Geyser erupting in summer evening light, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2305 - Crowds of spectators watching Old Faithful Geyser erupting, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2282 - Old Faithful geyser erupting, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2279 - Old Faithful geyser erupting, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
391-7121 - The Old Faithful Geyser at Calistoga, erupts 60 ft high every 30 minutes, with a pressure of 1000 lbs per square foot, Napa Valley, California, United States of America, North America
391-7449 - Old Faithful Geyser, erupts 60ft every 30 minutes, with pressure of 1000lbs per square foot, Napa Valley, California, United States of America (USA), North America
29-3894 - Castle and Sawmill Geysers in eruption in Old Faithful Geyser Basin in winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America
29-3884 - Winter eruption, Old Faithful geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America