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“Bite-Size Bits of Local, National, and Global History”
Yellowstone National Park in Park County, Wyoming — The American West (Mountains)
 

Beauty and Chromatic Pools

 
 
Beauty and Chromatic Pools Marker image. Click for full size.
By Bill Coughlin, July 31, 2015
1. Beauty and Chromatic Pools Marker
Inscription.
Living Color
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.

Chart
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.

Hidden Connections
Beauty
Beauty and Chromatic Pools Marker image. Click for full size.
By Bill Coughlin, July 31, 2015
2. Beauty and Chromatic Pools Marker
Beauty Pool can be seen behind the marker.
Pool shares an underground link with Chromatic Pool (to your immediate left). When Beauty Pool is full, Chromatic Pool’s water level is much lower; sometimes the reverse may be observed. Many other features in the Upper Geyser Basin have demonstrated similar behavior. The factors affecting such exchanges of function are many and may include phenomena such as earthquakes and continuing mineral accumulations in each feature’s underground “plumbing.”
 
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. Click 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. 0.3 miles away); Grotto Geyser (approx. 0.3 miles away); Crested Pool (approx. 0.3 miles away); Castle Geyser
Marker in the Upper Geyser Basin image. Click for full size.
By Bill Coughlin, July 31, 2015
3. Marker in the Upper Geyser Basin
(approx. 0.3 miles away); Riverside Geyser (approx. 0.4 miles away); Fading Glory (approx. half a mile away). Click for a list 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
 
Beauty Pool image. Click for full size.
By Bill Coughlin, July 31, 2015
4. Beauty Pool
Chromatic Pool image. Click for full size.
By Bill Coughlin, July 31, 2015
5. Chromatic Pool
 
 
Credits. This page originally submitted on , by Bill Coughlin of North Arlington, New Jersey. This page has been viewed 154 times since then and 17 times this year. Photos:   1, 2, 3, 4, 5. submitted on , by Bill Coughlin of North Arlington, New Jersey. This page was last revised on June 16, 2016.
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