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- Agate House in Petrified Forest National Park, AZ

- The Agate House in Petrified Forest National Park, Arizona. Archeologists believe the original building was constructed almost ten centuries ago between A.D. 1050 and 1300. The ancient Puebloan people in the area used petrified wood sealed with mud mortar...
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- Angels Landing Trail, viewed from above, Zion National Park, Utah

- Hikers on Angels Landing Trail, viewed from above, in Zion National Park, Utah. The trail was cut from a sheer drop of solid rock in 1926 and remains one of the park's most spectacular construction wonders. The top offers wonderful views of Zion Canyon. This...
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- An arch in Monument Valley, AZ

- An arch in Monument Valley, Arizona. Monument Valley is located inside Monument Valley Navajo Tribal Park, the Navajo Nation equivalent to a national park. Monument Valley is considered by some to be the most prototypical and iconic Southwestern landscape;...
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- Arches Monument Utah

- The land formations in Arches National Park have been evolving over millions of years. Rocks seem to balance atop pillars and plants live despite the harsh conditions.
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- Arches National Park at sunset

- The sun is setting and is partially obscured by a bank of clouds. Some of the land formations at Arches National Park can be seen in silhouette.
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- The bad lands at Petrified Forest National Park, AZ

- Eroded rock formations in the bad lands at Petrified Forest National Park, Arizona. Deposition, uplift, and erosion have created a diverse landscape over millions of years. Many formations, such as mesas and buttes, are formed when a protective cap of sandstone...
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- Bad lands in Petrified Forest National Park, AZ

- The sculpted ridges of bad lands in Petrified Forest National Park, Arizona. The formations show that thousands of years of mineral deposition have created colorful stripes in the surface of the rock. Deposition, uplift, and erosion have created a diverse...
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- Balanced Rock at Arches National Park

- The size of three school buses, Balanced Rock appears to be precariously perched on its pedestal. The red sandstone landform has eroded over millions of years. Next to Balanced Rock is a smaller balanced rock called “Chip Off the Old Block.” This...
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- Blooming cactus in Zion National Park, Utah

- A cactus, possibly a type of prickly pear, blooms in Zion National Park, Utah. Zion National Park is home to some of Utah's most diverse flora and fauna. It hosts over 900 species of plants, including at least 8 common varieties of cacti and many more succulents....
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- Buttes in Monument Valley, AZ

- The buttes of Monument Valley, Arizona. Monument Valley is located inside Monument Valley Navajo Tribal Park, the Navajo Nation equivalent to a national park. Monument Valley is considered by some to be the most prototypical and iconic Southwestern landscape;...
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- The buttes of Monument Valley, AZ

- The buttes of Monument Valley, Arizona. Monument Valley is located inside Monument Valley Navajo Tribal Park, the Navajo Nation equivalent to a national park. Monument Valley is considered by some to be the most prototypical and iconic Southwestern landscape;...
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- Castleton Tower, seen from Castle Valley near Moab, Utah

- This is Castleton Tower, as seen from Castle Valley near Moab, Utah. It rises 400 feet and is composed of Wingate sandstone. It rests on a 1,000 foot tall cone of lesser rock. Much of the formation is coated in a white glaze of calcite. The tower is a popular...
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- Central Park area of Arches National Park

- Park Avenue has “fins” of rock that tower above flat terrain. The Entrada red sandstone formations have been evolving for millions of years and they are constantly changing due to erosion.
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- Church Rock, Utah

- Church Rock is a rounded column of hard, tan sandstone. The rock has a small, hollowed opening at its base, supposedly created by a religious cult led by Marie Ogden in the 1920s and '30s. It is located near Moab, Utah.
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- A cliff on the way to the Emerald Pools in Zion National Park, Utah

- A cliff on the trail to the Emerald Pools in Zion National Park, Utah. The trail is scattered with boulders as well as small trees and shrubs. The Lower Emerald Pool trail follows the North Fork of the Virgin River and is shaded by cottonwood and box elder...
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- Cliffs near Lower Calf Creek Falls in Escalante, Utah

- This is a valley on the trail following Lower Calf Creek in Escalante, Utah. The rock cliffs on either side are composed of pink and tan Navajo sandstone, which over time is eroding into the valley below. Brushy vegetation grows on either side of the trail...
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- Cliffs near Lower Calf Creek Falls in Escalante, Utah

- These are rock cliffs near Lower Calf Creek in Escalante, Utah. They are composed of pink, gray, and tan Navajo sandstone, which over time is eroding into the valley below. Brushy vegetation grows in the valley and dots the cliff walls. The cliffs are lumpy,...
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- Cliffs near Lower Calf Creek Falls in Escalante, Utah

- These are rock cliffs near Lower Calf Creek in Escalante, Utah. They are composed of pink, gray, and tan Navajo sandstone, which over time is eroding into the valley below. Brushy vegetation and scrubby trees grow in the valley. The cliffs arc in a wide curve...
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- Colorful crystals in a petrified tree in Petrified Forest National Park, AZ

- Colorful purple, blue, red, and orange crystals in a petrified tree in Petrified Forest National Park, Arizona. Petrified Forest National Park encompasses part of the Rainbow Forest and the Painted Desert. It consist of several "forests" of petrified wood....
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- Colorful walls of Echo Canyon, Zion National Park, Utah

- Colorful walls of Echo Canyon, Zion National Park, Utah. Echo Canyon is a slot canyon accessible from the East Rim Trail. The lower part of the canyon meets the main valley through a steep series of erosion-carved potholes and channels. Going further in the...
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