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A box canyon is a small canyon that is generally shorter and narrower than a river canyon, with steep walls on three sides, allowing access and egress only through the mouth of the canyon. Box canyons were frequently used in the western United States as convenient corrals, with their entrances fenced.
Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, structure stratification, rock exposure, and soil type.Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains ...
Canyonlands National Park is a national park of the United States located in southeastern Utah near the town of Moab.The park preserves a colorful landscape eroded into numerous canyons, mesas, and buttes by the Colorado River, the Green River, and their respective tributaries.
At the eastern margin of the Canyon Lands is the Mesa Verde, a huge cuesta that has been deeply dissected by streams. Here in great recesses in the canyon walls are found the ruins of ancient cliff dwellings. East of the Little Colorado River are the brilliantly colored areas known as the Painted Desert. Here the rocks show gorgeous colors in ...
Even though it is not the deepest canyon in the world (Kali Gandaki Gorge in Nepal is much deeper [16]), the Grand Canyon is known for its visually overwhelming size and its intricate and colorful landscape. Geologically, it is significant because of the thick sequence of ancient rocks that are well preserved and exposed in the walls of the canyon.
Wetter climates during the recent ice ages of the Pleistocene period contributed to the deep cutting of the canyon walls. Sandstone exposed in canyons nearer to the Colorado River is typically from the Glen Canyon Group. The dark red cliffs of Coyote Gulch, for example, are composed of Navajo Sandstone.
Jun. 5—Forty-six years. That's the amount of time that has passed since Anna Sofaer began The Solstice Project. The move came after Sofaer's rediscovery of the Sun Dagger site on Fajada Butte in ...
The first national parks were a response to the romanticism that restructured the American concept of wilderness in the nineteenth century. As seen in the artistry of John James Audubon, James Fenimore Cooper, Thomas Cole, George Catlin, William Cullen Bryant and others, the idea of wilderness developed during the course of the nineteenth century from an entity to be feared and conquered into ...