The Crack Canyon Formation is a geologic formation in California. It preserves fossils dating back to the Cretaceous period. Earth sciences portal California...

Sandstone, it is the oldest formation exposed in the Bryce Canyon area but the youngest one exposed in the Zion and Kolob canyons area to the southwest. Abundant...

Kolob canyons area includes nine known exposed formations, all visible in Zion National Park in the U.S. state of Utah. Together, these formations represent...

canyons. Water seeps into cracks between the rocks and freezes, pushing the rocks apart and eventually causing large chunks to break off the canyon walls...

of a rock formation known as a fin. For example, the primary weathering force at Bryce Canyon is frost wedging. The hoodoos at Bryce Canyon experience...

The Red Rock Canyon National Conservation Area in Clark County, Nevada, United States, is an area managed by the Bureau of Land Management as part of its...

caused by ice wedging into cracks in the canyon walls, is another force that widens the valley. The Navajo Sandstone formation is easily eroded and is known...

"Morphoceras Douvillé, 1880 and Ebrayiceras Buckman, 1920 from the Dalichai Formation (Lower Bathonian) North and Northeast of Damghan (Northeast Alborz), Iran"...

hypothesis by McCauley in 1972 was that the canyons formed by withdrawal of subsurface magma. Around 1989, a formation hypothesis by tensional fracturing was...

Escalante River, and Stevens Canyon. This route involves squeezing through a crack in the rim of the canyon—referred to as the Crack-in-the-Wall route—and then...

The Kayenta Formation is a geological formation in the Glen Canyon Group that is spread across the Colorado Plateau area of the United States, including...

be seen. The Stuðlagil Canyon, situated 45 miles west of Egilsstaðir, showing a view of columnar joint basalts rock formations and the blue-green water...

the Grand Canyon, in Coconino County of Arizona, USA. It is situated 5.5 miles (8.9 km) northeast of the Yavapai Point overlook on the canyon's North Rim...

southern Mexico. The canyon's creation began around the same time as the Grand Canyon in the U.S. state of Arizona, by a crack in the area's crust and...

skull collected on June 9, 1884, from an outcrop of the Horseshoe Canyon Formation alongside the Red Deer River in Alberta. It was recovered by an expedition...

and very fine-grained sandstone. Within the Grand Canyon region, the upper part of the Hermit Formation contains red and white, massive, calcareous sandstone...

the San Rafael Reef, among them Crack Canyon, Chute Canyon and Straight Wash. These spectacularly beautiful canyons are often just a few feet wide and...

the Grand Canyon region. They form the crystalline basement rocks that underlie the Bass Limestone of the Unkar Group of the Grand Canyon Supergroup...

Glen Canyon Dam is a concrete arch-gravity dam in the southwestern United States, located on the Colorado River in northern Arizona, near the city of Page...

Francisquito Dam, was a concrete gravity-arch dam located in San Francisquito Canyon in northern Los Angeles County, California, United States, that was built...

as a popular canyoning spot, owing to its warm climate and abundance of rock formations conducive to canyoning. Portugal also has canyoning in the Azores...

small canyon with easy slopes, springs, picnic tables, and a loop hiking trail 4 miles (6.4 km) long. Natural attractions include rock formations, such...

to crack down on illegal grazing and established a system of regulated management and range restoration, before sheep were banned from Kings Canyon altogether...

The Dox Formation, also known as the Dox Sandstone, is a Mesoproterozoic rock formation that outcrops in the eastern Grand Canyon, Coconino County, Arizona...

Group/Budden Canyon Formation Cretaceous Great Valley Group/Crack Canyon Formation Cretaceous Great Valley Group/Gravelly Flat Formation Cretaceous Great...

Canyon. Back on the White Rim Road, one passes Buck Canyon, Gooseberry Canyon and Monument Basin with its rock pinnacles, followed by the White Crack...

soft siltstone and clay shale, splitting tiny cracks and fissures into larger and larger gullies and canyons. In areas below the eroded escarpment (dubbed...

fragments of the meteorite are officially called the Canyon Diablo Meteorite, after the adjacent Canyon Diablo. Meteor Crater lies at an elevation of 5,640 ft...

The Bass Formation, also known as the Bass Limestone, is a Mesoproterozoic rock formation that outcrops in the eastern Grand Canyon, Coconino County, Arizona...

Moro Rock is a granite dome rock formation in Sequoia National Park, California, United States. It is located in the center of the park, at the head of...