Yellowstone National Park in Park County, Wyoming — The American West (Mountains)
Norris Geyser Basin
In this raw, acidic land where iron and arsenic abound, thermophiles and extremophiles – microorganisms that live in heat and other extremes – inhabit geysers and hot springs.
Many pools are opalescent, or cloudy. Look for murky waters, caused by silica in the water. Colloidal Pool is a perfect example – usually! Here at Norris Geyser Basin where changes are common, a “perfect example” might change at any time.
Geyser Basin Glossary
Thermophile: A microorganism that inhabits a very hot place, such as a geyser or hot spring.
Extremophile: A microorganism that lives in extreme conditions such as heat and acid – and cannot survive without these extremes.
Colloid: Fine particles suspended in liquid that do not settle to the bottom or easily filter out.
Erected by National Park Service.
Location. 44° 43.694′ N, 110° 42.071′ W. Marker is in Yellowstone National Park, Wyoming, in Park County. Marker can be reached from Grand Loop Road (U.S. 89). Touch for map
Other nearby markers. At least 8 other markers are within walking distance of this marker. Porcelain Springs (within shouting distance of this marker); Solfatara (within shouting distance of this marker); Fumaroles (about 500 feet away, measured in a direct line); Living Thermometer (about 600 feet away); a different marker also named Norris Geyser Basin (about 800 feet away); The Norris Area (approx. 0.2 miles away); a different marker also named Norris Geyser Basin (approx. 0.2 miles away); The National Park System (approx. 0.2 miles away). Touch for a list and map of all markers in Yellowstone National Park.
More about this marker. A map of the Norris Geyser Basin appears on the right side of the marker. A photo of Colloidal Pool on the left side of the marker has a caption of “Colloidal Pool is named for the particles suspended on it, giving the water a cloudy appearance.” A photograph at the bottom right of the marker depicts “Thermophiles in Pinwheel Geyser’s runoff channel.”
Categories. • Natural Features •
Credits. This page was last revised on June 16, 2016. This page originally submitted on September 10, 2015, by Bill Coughlin of North Arlington, New Jersey. This page has been viewed 147 times since then and 19 times this year. Photos: 1, 2, 3, 4, 5. submitted on September 10, 2015, by Bill Coughlin of North Arlington, New Jersey.