To cause to break a shades, very beautiful.....is the size of 75 meters wide 91 meters at a depth of 49 meters, in the summer, the hot springs is orange and red. In the winter, spring is a dark green.The beauty of the Grand Prismatic hot Spring A fountain and out every 33 93 minutes without any change in the round 100 years have brought down over 300 of and can find many more.The middle of the hot springs is the hottest place, therefore without algae and bacteria, it is blue.