Hot pools sparkle with color on a mostly cloudless autumn day. Blue pools ringed with living color in the form of thermophilic bacteria mix with a bluebird sky at Biscuit Basin.

At Norris the color palette is extensive and the views expansive.

Many species of Bacteria form the colorful mats found in many geyser basins.  Thriving in temperatures that range from a comfortable 30C all the way up to 80C and providing a visual confirmation that life is indeed varied and diverse.

Afternoon clouds rolled though and dotted the sky adding another layer of color to the wonderful landscape below.