Grand Prismatic Spring displays brilliant colors along its edges, created by species of thermophilac (heat-loving) bacteria that thrive in narrow temperature ranges. The outer orange and red regions are the coolest water in the spring, where the overflow runs off.
Location: Midway Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 07265
Morning Glory Pool has long been considered a must-see site in Yellowstone. At one time a road brought visitors to its brink. Over the years they threw coins, bottles and trash in the pool, reducing its flow and causing the red and orange bacteria to creep in from its edge, replacing the blue bacteria that thrive in the hotter water at the center of the pool. The pool is now accessed only by a foot path. Upper Geyser Basin.
Location: Upper Geyser Basin, Yellowstone National Park, Wyoming
Image ID: 07268
San Diego City Skyline at Dawn, panorama, sky lit up orange and still harbor in the foreground. Mount San Miguel (left) and Mount Lyons (right).
Location: San Diego, California
Image ID: 38886
Panorama dimensions: 4877 x 11101