This large complex of hot springs is impressive both for its unique beauty as well as its scale. Formed hundreds of thousands of years ago by volcanic and seismic activity, these springs are one of Yellowstone's most popular spots.

Yellowstone National Park is full of areas like this - geyser basins - large, open areas where geothermic pressure from below the ground's surface force up various geysers and springs. The Norris Basin is one of the more accessible.

Yellowstone Lake isn't just the largest single body of water in Yellowstone National Park, but the largest elevated freshwater lake in the US. The lake contains several underwater hot springs that melt its otherwise thick ice sheets in the winter.

Located near the mouth of the Yellowstone River, the Fishing Bridge is a great location to spot the native Cutthroat trout. There is an RV park of the same name nearby.

This impressive gap in the earth in the first large canyon on the Yellowstone River. It is 24 miles long, and can reach a quarter-mile in depth and 3/4 a mile in width. It is gorgeously colored.

Named after the famous sketches of the waterfalls by Thomas Moran (but not actually the location where the sketched were done) this beautiful location showcases one of the most famous views in Yellowstone National Park.

The Mud Volcano blew itself apart in the early 20th century, but visitors can still see the impressive crater and other geothermal features in the surrounding area, such as the Mud Cauldron, Black Dragon's Caldron, and Dragon's Mouth Spring.

This hot spring in the Upper geyser Basin of Yellowstone National Park in Wyoming is famous for it's bright red-orange and blue-green coloring. These colors come from the bacteria which inhabit the geyser's interior.

The third largest hot spring in the world, the Grand Prismatic Hot Spring gets its color from bacteria around its rim that feed off of the mineral-rich water. In the summer months, the hot spring is a vivid red-orange shade.

Old Faithful is a cone geyser in the Upper Geyser Basin of Yellowstone National Park. It is one of the park's most well-known natural features, and is famous for its predictability. It generally erupts every 91 minutes.

The West Thumb Geyser Basin is the largest geyser basin at Yellowstone Lake, and an impressive area of geothermal activity that contains hot springs, mud pots, and geysers-- some of which are even in the lake itself.

A large, sub-alpine valley in Yellowstone National Park straddling the Yellowstone River between Yellowstone Falls and Yellowstone Lake. The valley is well known as one of the best locations to view wildlife in Yellowstone.

This lake in the heart of Grand Teton National is fed primarily by the Snake River. The lake is full of numerous species of fish and is the remnant of glacial activity thousands of years ago.

Oxbow Bend Overlook is located near Highway 89 on Snake River, just before heading towards Moran. The river makes a big turn here, resembling the shape of a curved bison horn, hence the name Oxbow Bend. Oxbow Bend is a famous spot for observing wild animals in Grand Teton, as well as a must-visit location for all photography enthusiasts. It is the best place to admire Mt. Moran.