View on Black and LARGER (a must see).
This photo shows why the the early explorers called the area "yellow stone"! Yellowstone Canyon is often called the "Grand Canyon of the Yellowstone" (National Park). It is up to 1,200 feet deep and a half mile across.
This is an HDR image (see comparison below). These are the natural colors, which you can't get in a normal shot, unless you photograph the canyon early in the morning. However, early in the morning the lighting is "flat" and without the shadows that create the feeling of depth. HDR allows you to have both the warm amplification of the reflective light (off the canyon walls) and the three-dimensional quality of more angular lighting that comes later in the morning.