Frost weathering in the context of "Arête"

Bryce Canyon National Park (/braɪs/) is a national park of the United States located in southwestern Utah. The major feature of the park is Bryce Canyon, which despite its name, is not a canyon but a collection of giant natural amphitheaters along the eastern side of the Paunsaugunt Plateau. Bryce is distinctive due to geological structures called hoodoos, formed by frost weathering and stream erosion of the river and lake bed sedimentary rock. The red, orange, and white colors of the rocks provide distinctive views for park visitors. Bryce Canyon National Park is much smaller and sits at a much higher elevation than nearby Zion National Park. The rim at Bryce varies from 8,000 to 9,000 feet (2,400 to 2,700 m).

The area is in portions of Garfield County and Kane County. It was settled by Mormon pioneers in the 1850s and was named after Ebenezer Bryce, who homesteaded in the area in 1874. The area was originally designated as a national monument by President Warren G. Harding in 1923 and was redesignated as a national park by Congress in 1928. The park covers 35,835 acres (55.992 sq mi; 14,502 ha; 145.02 km) and receives substantially fewer visitors than Zion National Park (nearly 4.3 million in 2016) or Grand Canyon National Park (almost 6 million in 2016), largely due to Bryce's more remote location. In 2024, Bryce Canyon received almost 2.5 million visitors.

Repointing is the process of renewing the pointing, which is the external part of mortar joints, in masonry construction. Over time, weathering and decay cause voids in the joints between masonry units, usually in bricks, allowing the undesirable entrance of water. Water entering through these voids can cause significant damage through frost weathering and from salt dissolution and deposition. Repointing is also called pointing, or pointing up, although these terms more properly refer to the finishing step in new construction. Tuckpointing is also commonly used as a synonym, though its formal definition is technically different.

The Preston Bypass was the United Kingdom's first motorway, opened in 1958. It was designed and engineered by Lancashire County Council surveyor James Drake as part of a larger initiative to create a north-south motorway network that would later form part of the M6 motorway. The original 8+1⁄4-mile (13.3 km) motorway ran around the east side of Preston between Bamber Bridge (now the M6 junction 29) and Broughton (now the M55 junction 1) and crossed over the River Ribble at Samlesbury at the M6 junction 31.

Planning started in 1937, despite the lack of legal powers permitting motorway construction until the introduction of the Special Roads Act 1949. Early work was hampered by heavy rainfall, resulting in the postponement of various heavy engineering works, such as the base foundation; the result of the weather meant the original two-year plan was delayed by a further five months. The bypass was opened on 5 December 1958 by the then Prime Minister, Harold Macmillan. Nearly £3 million was spent on its construction. Weeks after opening, the road had to close temporarily due to water causing other problems when the base layer was damaged by a rapid freeze and thaw cycle.

Kigilyakh or kisiliyakh (Russian: кигиляхиcode: rus promoted to code: ru ; Yakut: киһилээх, romanized: kihilēx, lit. 'stone person', plural киһилээхлэрэ kihilēxlere) are pillar-like natural rock formations looking like tall monoliths standing more or less isolated. Usually they are composed of granite or sandstone shaped as a result of cryogenic weathering. Most kigilyakhs formed during the Early Cretaceous and are about 120 million years old.

Nivation is the set of geomorphic processes associated with snow patches. The primary processes are mass wasting and the freeze-and-thaw cycle, in which fallen snow gets compacted into firn or névé. The importance of the processes covered by the term nivation with regard to the development of periglacial landscapes has been questioned by scholars, and the use of the term is discouraged.

Nivation has come to include various subprocesses related to snow patches which may be immobile or semi-permanent. These sub-processes include erosion (if any) or initiation of erosion, weathering, and meltwater flow from beneath the snow patch.