832-391539 - Steaming hot spring with colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-391542 - Steaming hot spring with colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-391543 - Steaming hot spring with sun star, Colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-391537 - Steaming hot spring with colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-391540 - Steaming hot spring with sun star, Colored mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-384347 - Shield Grand Prismatic Spring in front of yellow mineral deposits, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-384346 - Wave structure, coloured mineral deposits at the edge of the hot steaming spring, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-384344 - Colored mineral deposits at the edge sr steaming hot spring, detail photo, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-384348 - Two tourists on a jetty in the thermal area, hot spring, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-384345 - Tourists on a jetty in the thermal area, steaming hot spring, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-384350 - Visitors on footbridge over steaming hot spring with coloured mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
832-384343 - Visitors on footbridge over steaming hot spring with coloured mineral deposits, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA, North America
1318-210 - Grand Prismatic Spring and bacterial mats, Midway Geyser Basin, Yellowstone National Park, Teton County, Wyoming, United States of America, North America
1318-211 - Grand Prismatic Spring and bacterial mats, Midway Geyser Basin, Yellowstone National Park, Teton County, Wyoming, United States of America, North America
1318-214 - Grand Prismatic Spring and bacterial mats, Midway Geyser Basin, Yellowstone National Park, Teton County, Wyoming, United States of America, North America
762-746 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-747 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
857-86583 - A woman reading an interperative sign while hiking along the boardwalk next to the Grand Prismatic Springs , a thermal hot spring in Yellowstone National Park, Wyoming, Yellowstone, Wyoming, usa
857-86584 - A woman hiking along the boardwalk next to the Grand Prismatic Springs , a thermal hot spring in Yellowstone National Park, Wyoming, Yellowstone, Wyoming, usa
801-1389 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
801-1387 - Pool runoff of orange bacteria and algae (Therophiles), Grand Prismatic Pool, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1173-15 - Grand Prismatic Spring, a bright turquoise pool and site of geothermal activity, with mineral rich deposits at the edge, Grand Prismatic Spring, Yellowstone National Park, Wyoming
1167-288 - Fallen lodgepole pines, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1167-294 - Tourists on boardwalk in silhouette, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1167-291 - Grand Prismatic Spring reflections with Twin Buttes, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1167-290 - Tourist taking a photograph of Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1167-292 - Grand Prismatic Spring with a view towards Twin Buttes, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1167-69 - Bright colours and steam, Grand Prismatic Spring, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1167-68 - Fallen lodgepole pines, Grand Prismatic Spring, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1167-20 - Visitors, steam and vivid colours, Grand Prismatic Spring, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
832-195975 - Tourists on the boardwalk along the Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, Idaho, Montana, America, United States
832-123993 - Tourists on boardwalk, Grand Prismatic Spring, Midway Geyser Basin, colored thermophilic bacteria, microorganisms, hot springs, Yellowstone National Park, Wyoming, United States of America, USA
832-123994 - Petrified tree, runoff area of the Grand Prismatic Spring, Midway Geyser Basin, colored thermophilic bacteria, microorganisms, hot springs, Yellowstone National Park, Wyoming, United States of America, USA
832-123989 - Tourists on boardwalk, Grand Prismatic Spring, Midway Geyser Basin, colored thermophilic bacteria, microorganisms, hot springs, Yellowstone National Park, Wyoming, United States of America, USA
831-1081 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
831-1082 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
817-126321 - Grand Prismatic Spring Midway Geyser Basin Yellowstone National Park Wyoming USA Considered to be the largest hot spring in Yellowstone Discharges about 550 gallons of water poer minute
741-2549 - Grand Prismatic Spring in winter, Lower Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2298 - Tourists on the boardwalk around the Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2294 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2290 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2288 - Grand Prismatic Spring and Excelsior Pool behind, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2271 - Tourists on boardwalk over the mineral runoff from Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2268 - Tourists on boardwalk over the mineral runoff from Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2265 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2259 - Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
698-2249 - Dead lodgepole pine trunks, Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America