Mammoth Hotsprings, Geysers, and A

There are so many Geyser areas! We went to Mammoth Hot Springs in the North of the park and it has changed since we were here in 2007 with a different spring area. The blue springs are due to reflection of the silica in the spring and the colors are due to thermophile bacteria interacting with the minerals. The red and orange have the hottest temperature pools and the blue is the coolest.Read more