![USA, Wyoming, Yellowstone National Park, West Thumb Geyser Basin trail, tourist looking at Seismograph and Bluebell pool Stock Photo - Alamy USA, Wyoming, Yellowstone National Park, West Thumb Geyser Basin trail, tourist looking at Seismograph and Bluebell pool Stock Photo - Alamy](https://c8.alamy.com/comp/B2E013/usa-wyoming-yellowstone-national-park-west-thumb-geyser-basin-trail-B2E013.jpg)
USA, Wyoming, Yellowstone National Park, West Thumb Geyser Basin trail, tourist looking at Seismograph and Bluebell pool Stock Photo - Alamy
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West Thumb Geyser Basin - Yellowstone National Park - Geyser Basins & Thermal Features - Yellowstone Lake Region - Yellowstone National Park - Your Yellowstone Vacation
![Black Pool at West Thumb Geyser Basin Trail during Wonderful Colorful Sunset, Yellowstone National Park, Wyoming Stock Photo - Image of geological, park: 175220836 Black Pool at West Thumb Geyser Basin Trail during Wonderful Colorful Sunset, Yellowstone National Park, Wyoming Stock Photo - Image of geological, park: 175220836](https://thumbs.dreamstime.com/z/black-pool-west-thumb-geyser-basin-trail-wonderful-colorful-sunset-yellowstone-national-park-wyoming-black-pool-west-175220836.jpg)
Black Pool at West Thumb Geyser Basin Trail during Wonderful Colorful Sunset, Yellowstone National Park, Wyoming Stock Photo - Image of geological, park: 175220836
![USA, Wyoming, Yellowstone National Park,West Thumb Geyser Basin trail, Bluebell and Seismograph pool Stock Photo - Alamy USA, Wyoming, Yellowstone National Park,West Thumb Geyser Basin trail, Bluebell and Seismograph pool Stock Photo - Alamy](https://c8.alamy.com/comp/B2E01E/usa-wyoming-yellowstone-national-parkwest-thumb-geyser-basin-trail-B2E01E.jpg)
USA, Wyoming, Yellowstone National Park,West Thumb Geyser Basin trail, Bluebell and Seismograph pool Stock Photo - Alamy
![Long Exposure of Black Pool at West Thumb Geyser Basin Trail during Wonderful Colorful Sunset, Yellowstone National Park Stock Image - Image of beautiful, green: 175220611 Long Exposure of Black Pool at West Thumb Geyser Basin Trail during Wonderful Colorful Sunset, Yellowstone National Park Stock Image - Image of beautiful, green: 175220611](https://thumbs.dreamstime.com/z/long-exposure-black-pool-west-thumb-geyser-basin-trail-wonderful-colorful-sunset-yellowstone-national-park-long-175220611.jpg)