Grand Prismatic Spring
Yellowstone’s and North America’s largest hot spring, Grand Prismatic Pool is located within Midway Geyser Basin. The warm flowing water and colored bacteria living in it create striking patterns and is simultaneously a mirror for the sky. This intimacy of earth and sky thrilled me more than any other feature of Yellowstone’s astounding landscape.
From MIT’s website, “The fault-fractured rock of the region allows rain, snowmelt, and groundwater to percolate downward, become heated, and rise upward to feed the area’s hydrothermal features. At Grand Prismatic Pool the water flows outward from the spring evenly across the low mound formed of broad, low, step-like terraces. The deep blue of the hottest water is reflected in the steam rising above the spring. The orange, yellow, and brown colors in the cooler water of the runoff channels are produced by thermophilic cyanobacteria with different species living at different temperatures.”
Excelsior Geyser and the Firehole River
Yellowstone National Park (U.S. National Park Service)
https://www.nps.gov/yell/index.htm
Next week, Yellowstone’s headquarters at Mammoth Hot Springs
(and an elk named Touchdown).
All chapters of PortMoresby’s Yellowstone.
Find more of PortMoresby’s contributions here.
The images are beautiful and you were there on a perfect day — not so cold that there was a lot of steam, and with beautiful sky to reflect on the unique terraced landscape. Love it!
The pictures don’t do it justice. I’ve never seen anything like it. Maybe Asian rice terraces come closest.
Incredible photography PortMoresby ! I feel like I’m there.