sapphire pool

Biscuit Basin Bison

Some Bison enjoying the day in the Biscuit Basin area of Yellowstone National Park. This photo also includes the Sapphire pool and Firehole River. via 500px http://ift.tt/2sPLqBs

“Temperature 200-202°F Dimensions 18×30 feet. Sapphire Pool, named for its blue, crystal-clear water and for its resemblance to an Oriental sapphire, was once a placid hot pool. It was not until after the 1959 earthquake that major eruptions occurred. For several years following the earthquake powerful eruptions at two hour intervals reached 150 feet. TheContinue reading “Sapphire Pool”