Yellowstone National Park in Park County, Wyoming — The American West (Mountains)
Beauty and Chromatic Pools
The vivid colors of Beauty Pool’s basin and runoff channels are created by microscopic lifeforms. Incredibly, these organisms survive and thrive in an environment that would be lethal to us and most other living creatures. Scientists are just beginning to understand these lifeforms; amazingly, hot spring environments may sustain a diversity of organisms rivaling that of terrestrial rain forests.
Thermal Feature Color Gradient
In the geyser basin with alkaline or neutral pH (Upper Midway, Lower West Thumb, and Mammoth Hot Springs) color is primarily a function of what lives and grows in a feature. The graph to the right represents the upper environmental temperature limits for life and the corresponding colors (which vary over the course of a year as a consequence of seasonal changes) in the features or runoff channels.
Blue and clear waters are extremely hot and at times may exceed the boiling point (199° F [93° C] at this elevation) Archaea.
163° F (73° C) or lower Cyanobacteria.
144° F (62° C) or lower Fungi.
140° F (60° C) or lower Algae.
133° F (56° C) or lower Protozoa.
122° F (50° C) or lower Mosses, crustaceans, and insects.
80° F (27° C) or lower Trout.
Erected by National Park Service.
Location. 44° 28.099′ N, 110° 50.334′ W. Marker is in Yellowstone National Park, Wyoming, in Park County. Marker can be reached from Lower Grand Loop Road (U.S. 287), on the left when traveling south. Touch for map. Marker is located in the Upper Geyser Basin in Yellowstone National Park. Marker is in this post office area: Yellowstone National Park WY 82190, United States of America.
Other nearby markers. At least 8 other markers are within walking distance of this marker. Grand Geyser (about 800 feet away, measured in a direct line); Giant Geyser (approx. 0.2 miles away); Daisy Geyser (approx. ¼ mile away); Grotto Geyser (approx. 0.3 miles away); Crested Pool (approx. 0.3 miles away); Castle Geyser Riverside Geyser (approx. 0.4 miles away); Fading Glory (approx. half a mile away). Touch for a list and map of all markers in Yellowstone National Park.
More about this marker. Photographs of the Chromatic and Beauty Pools appear on the marker.
Categories. • Natural Features •
Credits. This page was last revised on June 16, 2016. This page originally submitted on September 8, 2015, by Bill Coughlin of North Arlington, New Jersey. This page has been viewed 191 times since then and 9 times this year. Photos: 1, 2, 3, 4, 5. submitted on September 8, 2015, by Bill Coughlin of North Arlington, New Jersey.