Grand Prismatic Spring No 1

These colours are formed in the run off channels of the hot springs and are the result of billions of heat loving microorganisms called thermophiles.

Date: 18/09/10

Location: Grand Prismatic Spring, Yellowstone

Photographer: Hugh Milsom

Grand Prismatic Spring No 1

These colours are formed in the run off channels of the hot springs and are the result of billions of heat loving microorganisms called thermophiles.

Date: 18/09/10

Location: Grand Prismatic Spring, Yellowstone

Photographer: Hugh Milsom