If one mentions Yellowstone Park and most people will think of “Old Faithful” Geyser. And no wonder for many. many years this famous geyser has faithfully displayed the show to thousands. The hot water eruption occurs approximately every 80-90 minutes currently. We finally were able to witness this interesting display! The water shots from around 135 feet to 180 feet in height. Approximately 3,200 to 8,400 gallons of hot water is shot into the air each time it erupts.
Old Faithful was discovered in 1870, but I am sure the Indians of the area had known of the display many years prior to this.
The fact is there are over 300 geysers in Yellowstone. We saw a few others too.
The variances in geysers is interesting as well. Fountain geysers erupt from broad pools. Cone geysers burst through narrow rock vents. however, Old faithful is the most recognized of them all.
Another unique feature of this area are the hot springs. These continually yield water flowing to their surface and leaching out and about. Steam is usually present too. The water temperatures vary from around 150 to 170 degrees. These may produce very deep pools of beautiful green to blue colors. Colors vary due to temperature and the bacteria growth within.
Mammoth Hot Springs is one of more viewed of these hot springs. They are created by hydrothermal waters flowing through and interacting with rock and limestone deposits. These dissolve into calcium carbonate. The water flows from out and the deposits settle and grow. The Mammoth Hot Springs is very high with deposits and growing. The park has board walks throughout to walk and wonder.
Other sites are known as “mud pots.” These plop and make gargling sounds. hydrogen sulfide is converted to sulfuric acid which break down the rock and clay into mud. The mud is of a consistency of a milkshake. The smell of “rotten eggs” is noticeable here.