In geography and geology, a cliff or rock face is an area of rock which has a general angle defined by the vertical, or nearly vertical. Cliffs are formed by the processes of weathering and erosion , with the effect of gravity . Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually composed of rock that is resistant to weathering and erosion. The sedimentary rocks that are most likely to form cliffs include sandstone , limestone , chalk , and dolomite . Igneous rocks such as granite and basalt also often form cliffs.
28-508: A clifftop is the area of land at the top of a cliff . It may also refer to: Clifftop, Fayette County, West Virginia Clifftop, Raleigh County, West Virginia See also [ edit ] Appalachian String Band Music Festival (often referred to simply as "Clifftop"), held each August in Clifftop, Fayette County, West Virginia Cliff-top dune [REDACTED] Topics referred to by
56-531: A 4,250 m span can be found at a ridge sitting inside the Kermadec Trench . According to some sources, the highest cliff in the world, about 1,340 m high, is the east face of Great Trango in the Karakoram mountains of northern Pakistan. This uses a fairly stringent notion of cliff, as the 1,340 m figure refers to a nearly vertical headwall of two stacked pillars; adding in a very steep approach brings
84-738: A bridge on one of the switchbacks, and the trail is indefinitely closed. There has been no report of a damage assessment, likely because the government was shut down at the time. Kenneth Seamon, the Kalaupapa administrator of the State Department of Health, said that supply deliveries shouldn't be affected since they go by barge and plane. The barge arrives once a year in the summer, and Kamaka Air stops weekly. In 1972, Japanese photographer Kishin Shinoyama photographed fashion-model Marie Helvin and some of her family more or less naked on
112-493: A central geomorphic feature of the Kalaupapa peninsula as containing salt or freshwater, respectively. Kauhako lake, a freshwater resource during certain times in Kalaupapa's history, has largest depth-to-area ratio for any lake on earth. The lake has a weak tidal connection to the ocean and the Kalaupapa peninsula is underlain by only a thin freshwater lens. Until the construction of the Kalaupapa Airport in 1935,
140-451: A cliff does not need to be exactly vertical, there can be ambiguity about whether a given slope is a cliff or not and also about how much of a certain slope to count as a cliff. For example, given a truly vertical rock wall above a very steep slope, one could count just the rock wall or the combination. Listings of cliffs are thus inherently uncertain. Some of the largest cliffs on Earth are found underwater. For example, an 8,000 m drop over
168-458: A less stringent definition, as the average slope of these cliffs at Kaulapapa is about 1.7, corresponding to an angle of 60 degrees, and Mitre Peak is similar. A more vertical drop into the sea can be found at Maujit Qaqarssuasia (also known as the ' Thumbnail ') which is situated in the Torssukátak fjord area at the very tip of South Greenland and drops 1,560 m near-vertically. Considering
196-399: A soil slope may obscure the talus . Many cliffs also feature tributary waterfalls or rock shelters . Sometimes a cliff peters out at the end of a ridge, with mushroom rocks or other types of rock columns remaining. Coastal erosion may lead to the formation of sea cliffs along a receding coastline. The British Ordnance Survey distinguishes between around most cliffs (continuous line along
224-489: A third of the northern portion of the island collapsed into the sea. The offshore islands—'Ōkala, Mōkapu, and Huelo—support this theory, housing original plant species found on Molokai over two thousand years ago such as the rare native loulu palm . Mōkapu also hosts a remnant population of Emoia impar , the dark-bellied copper-striped skink, which was introduced to Hawaii more recently. Around 230,000–300,000 years ago, an offshore shield volcano named Pu’u’uao erupted from
252-637: A truly vertical drop, Mount Thor on Baffin Island in Arctic Canada is often considered the highest at 1370 m (4500 ft) high in total (the top 480 m (1600 ft) is overhanging), and is said to give it the longest vertical drop on Earth at 1,250 m (4,100 ft). However, other cliffs on Baffin Island, such as Polar Sun Spire in the Sam Ford Fjord , or others in remote areas of Greenland may be higher. The highest cliff in
280-580: A variety of plants and animals, whose preferences and needs are suited by the vertical geometry of this landform type. For example, a number of birds have decided affinities for choosing cliff locations for nesting, often driven by the defensibility of these locations as well as absence of certain predators. Humans have also inhabited cliff dwellings . The population of the rare Borderea chouardii , during 2012, existed only on two cliff habitats within western Europe. Kalaupapa, Hawaii Kalaupapa ( Hawaiian pronunciation: [kəlɐwˈpɐpə] )
308-549: A zip code of 96742. The village is the site of a former settlement for people with leprosy. At its peak, about 1,200 men, women, and children were exiled to Kalaupapa Peninsula. The isolation law was enacted by King Kamehameha V and remained in effect until its repeal in 1969. Today, about four people who formerly had leprosy continue to live there. The colony is now included within Kalaupapa National Historical Park . The original leper colony
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#1732783736472336-582: Is a small unincorporated community and Hawaiian home land on the island of Molokaʻi , within Kalawao County in the U.S. state of Hawaii . In 1866, during the reign of Kamehameha V , the Hawaii legislature passed a law that resulted in the designation of Molokaʻi as the site for a leper colony , where patients who were seriously affected by leprosy (also known as Hansen's disease) could be quarantined, to prevent them from infecting others. At
364-502: Is different from Wikidata All article disambiguation pages All disambiguation pages Cliff An escarpment (or scarp) is a type of cliff formed by the movement of a geologic fault , a landslide, or sometimes by rock slides or falling rocks which change the differential erosion of the rock layers. Most cliffs have some form of scree slope at their base. In arid areas or under high cliffs, they are generally exposed jumbles of fallen rock. In areas of higher moisture,
392-505: Is overhanging. This is commonly regarded as being the largest vertical drop on Earth [1] ot:leapyear at 1,250 m (4,100 ft). of Baffin Island , rises 4,300 ft above the flat frozen fjord, although the lower portion of the face breaks from the vertical wall with a series of ledges and buttresses. Other notable cliffs include: Above Sea Above Land Above Sea Above Land Submarine Above Sea Above Land Cliff landforms provide unique habitat niches to
420-461: The Pacific Ocean . In the 1870s a community to support the leper colony was established here. The legislature required people with severe cases to be quarantined on the island in the hope of preventing contagion. The area has been preserved as the Kalaupapa National Historical Park , which takes in the entire county. Despite the declining population, the post office is still active, having
448-527: The beach of Kalaupapa. These photos depicted the raw intimacy between the siblings through the use of grains and colors in the book 'Marie's Seven Days in Molokai '. The Kalaupapa National Historical park was established December 22, 1980. The park only allows 100 visitors a day, and each visitor must have a sponsor, either a resident or through one of the tour companies. The National Park Service outlines several key pieces of information to know before planning
476-486: The colony, many of the residents were physically scarred by the disease to an extent that would make their integration into mainstream society difficult if not impossible. In total over the decades, more than 8,500 men, women and children living throughout the Hawaiian islands and diagnosed with leprosy were exiled to the colony by the Hawaiian government and legally declared dead. The Kalaupapa Peninsula remains one of
504-482: The course of the trail. The National Park Service describes the hike as extremely strenuous due to the steep, uneven surfaces and varied trail conditions. Many visitors also ride Molokai mules down the trail into Kalaupapa. On the evening of December 25, 2018, a postal service worker discovered significant damage to the trail from an enormous landslide. According to the Star Advertiser, the landslide took out
532-517: The last fishing village inhabitants in order to expand the colony to encompass the entire Kalaupapa peninsula, including Kalawao. Shortly before the end of mandatory isolation in 1969, the state legislature considered closing the facility entirely. Intervention by interested persons, such as entertainer Don Ho and TV newsman Don Picken, resulted in allowing the residents who chose to do so to remain there for life. The opponents to closure pointed out that, although there were no active cases of leprosy in
560-409: The most remote locations in Hawaii due to unique volcanic and geologic activity over millions of years. Specifically, Molokai's famous sea cliffs, which reach up to three thousand feet above sea level and are among the tallest in the world, are most responsible for restricting access. Geologists thought that these cliffs were carved by wind and water erosion, but it is now believed that they formed after
588-492: The only way into the peninsula was by boat or descending down the Kalaupapa Pali trail. Nowadays, accessing the peninsula via boat requires a special use permit. It is prohibited to come within 1,300 feet (400 m) of the Kalaupapa shoreline. The 3.5-mile (5.6 km) Kalaupapa Pali Trail is the only land access into Kalaupapa. The trail consists of 26 switchbacks with a 2,000-foot (610 m) elevation change over
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#1732783736472616-426: The same term This disambiguation page lists articles about distinct geographical locations with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Clifftop&oldid=1186878662 " Category : Place name disambiguation pages Hidden categories: Short description
644-451: The sea floor. The extremely hot and fast flowing pāhoehoe lava created a flat triangle of land which eventually cooled and connected to the main part of the island. Among residents' most pressing challenges to survival were the scarcity and preservation of freshwater. An interest in the Kalaupapa coastal aquifer was captured by conflicting early accounts of visitors Jules Remy (1893) and Nakuino (1878) who described Kauhako Crater lake,
672-603: The solar system may be Verona Rupes , an approximately 20 km (12 mi) high fault scarp on Miranda , a moon of Uranus. The following is an incomplete list of cliffs of the world. Above Sea Above Land Several big granite faces in the Arctic region vie for the title of 'highest vertical drop on Earth', but reliable measurements are not always available. The possible contenders include (measurements are approximate): Mount Thor , Baffin Island , Canada; 1,370 m (4,500 ft) total; top 480 m (1600 ft)
700-526: The time, the disease was little understood: it was believed to be highly contagious and was incurable until the advent of antibiotics. The communities where people with leprosy lived were under the administration of the Board of Health, which appointed superintendents on the island. Kalaupapa is located on the Kalaupapa Peninsula at the base of sea cliffs that rise 2,000 feet (610 m) above
728-534: The topper edge with projections down the face) and outcrops (continuous lines along lower edge). Cliff comes from the Old English word clif of essentially the same meaning, cognate with Dutch, Low German, and Old Norse klif 'cliff'. These may in turn all be from a Romance loanword into Primitive Germanic that has its origins in the Latin forms clivus / clevus ("slope" or "hillside"). Given that
756-457: The total drop from the East Face precipice to the nearby Dunge Glacier to nearly 2,000 m. The location of the world's highest sea cliffs depends also on the definition of 'cliff' that is used. Guinness World Records states it is Kalaupapa, Hawaii , at 1,010 m high. Another contender is the north face of Mitre Peak , which drops 1,683 m to Milford Sound , New Zealand. These are subject to
784-485: Was first established in Kalawao in the east, opposite to the village corner of the peninsula. It was there where Father Damien settled in 1873. Later it was moved to the location of the current village, which was originally a Native Hawaiian fishing village. The settlement was also attended by Mother Marianne Cope and physician Arthur Albert St. Mouritz , among others. In 1893–1894, the Board of Health tried to remove
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