The topographic isolation of a summit is the minimum great-circle distance to a point of equal elevation, representing a radius of dominance in which the peak is the highest point. It can be calculated for small hills and islands as well as for major mountain peaks, can be calculated for submarine summits; the following sortable table lists the Earth's 40 most topographically isolated summits. The nearest peak to Germany's highest mountain, the 2,962-metre-high Zugspitze, that has a 2962-metre-contour is the Zwölferkogel in Austria's Stubai Alps; the distance between the Zugspitze and this contour is 25.8 km. Its isolation is thus 25.8 km. Because there are no higher mountains than Mount Everest, it has no definitive isolation. Many sources list its isolation as the circumference of the earth over the poles or – questionably, because there is no agreed definition – as half the earth's circumference. After Mount Everest, the highest mountain of the American continents, has the greatest isolation of all mountains.
There is no higher land for 16,534 kilometres when its height is first exceeded by Tirich Mir in the Hindu Kush. Mont Blanc is the highest mountain of the Alps; the geographically nearest higher mountains are all in the Caucasus. Kukurtlu, which rises near Mount Elbrus, is the reference peak for Mont Blanc. Musala is the highest peak in Rila mountain, in Bulgaria and the Balkan Peninsula, standing at 2,925 m it is the 4th most topographically isolated peak in Continental Europe.. Rila is the 6th highest mountain in Europe. With a topographic prominence of 2473 m, Musala is the 6th highest peak by topographic prominence in mainland Europe. Table of the most isolated major summits of North America Table of the most isolated major summits of the United States Most isolated mountain peaks of Canada Most isolated mountain peaks of Mexico geodesy physical geography summit topographic elevation topographic prominence topography bivouac.com Canadian Mountain Encyclopedia peakbagger.com peaklist.org peakware.com World Mountain Encyclopedia summitpost.org^ ^ "Europe Ultra-Prominences".
Peaklist. Retrieved 26 February 2015
In the mountaineering parlance of the Western United States, a fourteener is a mountain peak with an elevation of at least 14,000 feet. There are 96 fourteeners in all west of the Mississippi River. Colorado has the most of any single state. Many peak baggers try to climb all fourteeners in the contiguous United States, one particular state, or another region; the summit of a mountain or hill may be measured in three principal ways: topographic elevation: the height of the summit above a geodetic sea level. Topographic prominence: how high the summit rises above its surroundings. Topographic isolation: how far the summit lies from its nearest point of equal elevation. Not all summits over 14,000 feet qualify as fourteeners. Summits which qualify are those considered by mountaineers to be independent. Objective standards for independence include topographic prominence and isolation, or a combination of the two. However, fourteener lists do not always use such objective rules. A rule used by mountaineers in the contiguous United States is that a peak must have at least 300 feet of prominence to qualify.
By this rule, Colorado has 53 fourteeners, California has 12, Washington has two. According to the Mountaineering Club of Alaska, it is standard in Alaska to use a 500-foot prominence rule rather than a 300-foot rule. By this rule, Alaska has at least 21 peaks over 14,000 feet and its 12 highest peaks exceed 15,000 feet; the following table lists the 96 mountain peaks of the United States with at least 14,000 feet of topographic elevation and at least 300 feet of topographic prominence. Of these 96 fourteeners, 53 rise in Colorado, 29 in Alaska, 12 in California, two in Washington; the 22 highest fourteeners all rise in Alaska. The table above includes 97 peaks; the number of peaks included. A criterion of 100 meters includes 90 peaks, 500 feet includes 77 peaks, 1000 feet includes 63 peaks, 500 meters includes 46 peaks; the following U. S. summits have 14,000 feet of elevation, but have less than 300 feet of topographic prominence: Denali, Browne Tower, 14,530, Alaska. Prominence = 25–125 feet, it is unclear.
Mount Cameron, 14,238, Colorado. Prominence = 118 feet. El Diente Peak, 14,159, Colorado. Prominence = 239 feet. On many fourteener lists. Point Success, 14,158, Washington. Prominence = 118 feet. Polemonium Peak, 14,080+, California. Prominence = 160–240 feet. Starlight Peak, 14,080, California. Prominence = 80–160 feet. North Conundrum Peak, 14,040+, Colorado. Prominence = 200–280 feet. North Eolus, 14,039, Colorado. Prominence = 159–199 feet. North Maroon Peak, 14,014, Colorado. Prominence = 234 feet. On many fourteener lists. Thunderbolt Peak, 14,003, California. Prominence = 223 feet. Sunlight Spire, 14,001, Colorado. Prominence = 195–235 feet. List of mountain peaks of North America List of mountain peaks of Greenland List of mountain peaks of Canada List of mountain peaks of the Rocky Mountains List of mountain peaks of the United States List of the highest major summits of the United States List of the major 4000-meter summits of the United States List of the major 3000-meter summits of the United States List of the most prominent summits of the United States List of the ultra-prominent summits of the United States List of the most isolated major summits of the United States List of the major 100-kilometer summits of the United States List of extreme summits of the United States List of mountain peaks of Alaska List of mountain peaks of California List of mountain peaks of Colorado List of mountain peaks of Hawaiʻi List of mountain peaks of Montana List of mountain peaks of Nevada List of mountain peaks of Utah List of mountain peaks of Washington List of mountain peaks of Wyoming List of mountain peaks of México List of mountain peaks of Central America List of mountain peaks of the Caribbean United States of America Geography of the United States Geology of the United States Category:Mountains of the United States commons:Category:Mountains of the United States Physical geography Topography Topographic elevation Topographic prominence Topographic isolation United States Geological Survey Geographic Names Information System @ USGS United States National Geodetic Survey Geodetic Glossary @ NGS NGVD 29 to NAVD 88 online elevation converter @ NGS Survey Marks and Datasheets @ NGS Bivouac.com Peakbagger.com Peaklist.org Peakware.com Summitpost.org
A summit is a point on a surface, higher in elevation than all points adjacent to it. The topographic terms acme, apex and zenith are synonymous; the term top is used only for a mountain peak, located at some distance from the nearest point of higher elevation. For example, a big massive rock next to the main summit of a mountain is not considered a summit. Summits near a higher peak, with some prominence or isolation, but not reaching a certain cutoff value for the quantities, are considered subsummits of the higher peak, are considered part of the same mountain. A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top. Summit may refer to the highest point along a line, trail, or route; the highest summit in the world is Everest with height of 8844.43 m above sea level. The first official ascent was made by Sir Edmund Hillary, they reached the mountain`s peak in 1953. Whether a highest point is classified as a summit, a sub peak or a separate mountain is subjective; the UIAA definition of a peak is.
Otherwise, it's a subpeak. In many parts of the western United States, the term summit refers to the highest point along a road, highway, or railroad. For example, the highest point along Interstate 80 in California is referred to as Donner Summit and the highest point on Interstate 5 is Siskiyou Mountain Summit. A summit climbing differs from the common mountaineering. Summit expedition requires: 1+ year of training, a good physical shape, a special gear. Although a huge part of climber’s stuff can be left and taken at the base camps or given to porters, there is a long list of personal equipment. In addition to common mountaineers’ gear, Summit climbers need to take Diamox and bottles of oxygen. There are special requirements for crampons, ice axe, rappel device, etc. Geoid Hill – Landform that extends above the surrounding terrain Nadir Summit accordance Peak finder Summit Climbing Gear List
A rockfall or rock-fall refers to quantities of rock falling from a cliff face. The term is used for collapse of rock from roof or walls of mine or quarry workings. A rockfall is a fragment of rock detached by sliding, toppling, or falling, that falls along a vertical or sub-vertical cliff, proceeds down slope by bouncing and flying along ballistic trajectories or by rolling on talus or debris slopes,”. Alternatively, a "rockfall is the natural downward motion of a detached block or series of blocks with a small volume involving free falling, bouncing and sliding"; the mode of failure differs from that of a rockslide. Favourable geology and climate are the principal causal mechanisms of rockfall, factors that include intact condition of the rock mass, discontinuities within the rockmass, weathering susceptibility and surface water, freeze-thaw, root-wedging, external stresses. A tree may be blown by the wind, this causes a pressure at the root level and this loosens rocks and can trigger a fall.
The pieces of rock collect at the bottom creating a scree. Rocks falling from the cliff may dislodge other rocks and serve to create another mass wasting process, for example an avalanche. A cliff that has favorable geology to a rockfall may be said to be incompetent. One, not favorable to a rockfall, better consolidated, may be said to be competent. Rockfall events are mitigated in one of two ways: either by passive mitigation or active mitigation. Passive mitigation is where only the effects of the rockfall event are mitigated and are employed in the deposition or run-out zones, such as through the use of drape nets, rockfall catchment fences, diversion dams, etc; the rockfall still takes place but an attempt is made to control the outcome. In contrast, active mitigation is carried out in the initiation zone and prevents the rockfall event from occurring; some examples of these measures are rock bolting, slope retention systems, etc. Other active measures might be by changing the geographic or climatic characteristics in the initiation zone, e.g. altering slope geometry, dewatering the slope, etc.
Design guides of passive measures have been proposed by Pierson et al.. Pantelidis and Bar et al; the effect of rockfalls on trees can be seen in several ways. The tree roots may rotate, via the rotational energy of the rockfall; the tree may move via the application of translational energy. And lastly deformation may occur, either plastic. Dendrochronology can reveal a past impact, with missing tree rings, as the tree rings grow around and close over a gap. A macroscopic section can be used for dating of rockfall events. Earthquake Kinetic energy Landslide Potential energy Protection forest Rockslide Slope stability SMR classification Q-slope
Climbing is the activity of using one's hands, feet, or any other part of the body to ascend a steep object. It is done for locomotion and competition, in trades that rely on it, in emergency rescue and military operations, it is done indoors and out, on man-made structures. Guides, such as professional mountain guides, have been an essential element of pursuing the sport in the natural environment, remain so today. Climbing activities include: Bouldering: Ascending boulders or small outcrops with climbing shoes and a chalk bag or bucket. Instead of using a safety rope from above, injury is avoided using a crash pad and a human spotter Buildering: Ascending the exterior skeletons of buildings without protective equipment. Canyoneering: Climbing along canyons for sport or recreation. Chalk climbing: Ascending chalk cliffs uses some of the same techniques as ice climbing. Competition climbing: A formal, competitive sport of recent origins practiced on artificial walls that resemble natural formations.
The International Federation of Sport Climbing is the official organization governing competition rock climbing worldwide and is recognized by the IOC and GAISF and is a member of the International World Games Association. The UIAA is the official organization governing competition ice climbing worldwide. Competition climbing has three major disciplines: Lead and Speed. Free Climbing: a form of rock climbing in which the climber uses climbing equipment such as ropes and other means of climbing protection, but only to protect against injury during falls and not to assist progress. Ice climbing: Ascending ice or hard snow formations using special equipment ice axes and crampons. Techniques of protecting the climber are similar to those of rock climbing, with protective devices adapted to frozen conditions. Indoor climbing: Top roping, lead climbing, bouldering artificial walls with bolted holds in a climbing gym. Ladder climbing: Climbing ladders for exercise; this may involve climbing up and down the underside of a ladder, or along a horizontally aligned ladder or'monkey bars'.
The ladder may be climbed going backwards, or sideways. Lumberjack tree-trimming and competitive tree-trunk or pole climbing for speed using spikes and belts. Mallakhamba: A traditional Indian sport which combines climbing a pole or rope with the performance of aerial Yoga and gymnastics. Mountaineering: Ascending mountains for sport or recreation, it involves rock and/or ice climbing. Pole climbing: Climbing poles and masts without equipment. Rock climbing: Ascending rock formations using climbing shoes and a chalk bag. Equipment such as ropes, nuts and camming devices are employed, either as a safeguard or for artificial aid. Rope access: Industrial climbing abseiling, as an alternative to scaffolding for short works on exposed structures. Rope climbing: Climbing a short, thick rope for speed. Not to be confused with roped climbing, as in rock or ice climbing. Scrambling which includes easy rock climbing, is considered part of hillwalking. Sport climbing is a form of rock climbing that relies on permanent anchors fixed to the rock, bolts, for protection.
Top roping: Ascending a rock climbing route protected by a rope anchored at the top and protected by a belayer below Traditional climbing is a form of climbing without fixed anchors and bolts. Climbers place removable protection such as camming devices and other passive and active protection that holds the rope to the rock in the event of a fall and/or when weighted by a climber. Solo climbing: Solo climbing or soloing is a style of climbing in which the climber climbs alone, without somebody belaying them; when free soloing, an error is fatal as no belay systems are being used. Soloing can be self-belayed, hence minimizing the risks. Tree climbing: Recreationally ascending trees using ropes and other protective equipment. A tower climber is a professional who climbs broadcasting or telecommunication towers or masts for maintenance or repair. Rock and tree climbing all utilize ropes for safety or aid. Pole climbing and rope climbing were among the first exercises to be included in the origins of modern gymnastics in the late 18th century and early 19th century.
Aid climbing Clean climbing Climbing clubs Climbing wall Climbing equipment Climbing organisations Fall factor List of climbers – notable rock and ice climbers List of climbing topics Glossary of climbing terms Glossary of knots common in climbing Outdoor education Outdoor activity Rock climbing Running belay Parkour Scrambling Solo climbing Speed climbing Climbing at Curlie
The Rocky Mountains known as the Rockies, are a major mountain range in western North America. The Rocky Mountains stretch more than 4,800 kilometers from the northernmost part of British Columbia, in western Canada, to New Mexico in the Southwestern United States. Located within the North American Cordillera, the Rockies are somewhat distinct from the Pacific Coast Ranges, Cascade Range, the Sierra Nevada, which all lie farther to the west; the Rocky Mountains formed 80 million to 55 million years ago during the Laramide orogeny, in which a number of plates began sliding underneath the North American plate. The angle of subduction was shallow, resulting in a broad belt of mountains running down western North America. Since further tectonic activity and erosion by glaciers have sculpted the Rockies into dramatic peaks and valleys. At the end of the last ice age, humans began inhabiting the mountain range. After Europeans, such as Sir Alexander Mackenzie, Americans, such as the Lewis and Clark expedition, began exploring the range and furs drove the initial economic exploitation of the mountains, although the range itself never experienced dense population.
Public parks and forest lands protect much of the mountain range, they are popular tourist destinations for hiking, mountaineering, hunting, mountain biking and snowboarding. The name of the mountains is a translation of an Amerindian name, related to Algonquian; the first mention of their present name by a European was in the journal of Jacques Legardeur de Saint-Pierre in 1752, where they were called "Montagnes de Roche". The Rocky Mountains are defined as stretching from the Liard River in British Columbia south to the Rio Grande in New Mexico; the Rockies vary in width from 110 to 480 kilometres. The Rocky Mountains are notable for containing the highest peaks in central North America; the range's highest peak is Mount Elbert located in Colorado at 4,401 metres above sea level. Mount Robson in British Columbia, at 3,954 metres, is the highest peak in the Canadian Rockies; the eastern edge of the Rockies rises above the Interior Plains of central North America, including the Sangre de Cristo Mountains of New Mexico and Colorado, the Front Range of Colorado, the Wind River Range and Big Horn Mountains of Wyoming, the Absaroka-Beartooth ranges and Rocky Mountain Front of Montana and the Clark Range of Alberta.
The western edge of the Rockies includes ranges such as the Wasatch near Salt Lake City and the Bitterroots along the Idaho-Montana border. The Great Basin and Columbia River Plateau separate these subranges from distinct ranges further to the west. In Canada, the western edge of the Rockies is formed by the huge Rocky Mountain Trench, which runs the length of British Columbia from its beginnings in the middle Flathead River valley in western Montana to the south bank of the Liard River. Geographers define three main groups of the Canadian Rockies: the Continental Ranges, Hart Ranges, Muskwa Ranges; the Rockies do not extend into central British Columbia. Other mountain ranges continue beyond the Liard River, including the Selwyn Mountains in Yukon, the Brooks Range in Alaska, but those are not part of the Rockies, though they are part of the American Cordillera; the Continental Divide of the Americas is located in the Rocky Mountains and designates the line at which waters flow either to the Atlantic or Pacific Oceans.
Triple Divide Peak in Glacier National Park is so named because water falling on the mountain reaches not only the Atlantic and Pacific but Hudson Bay as well. Farther north in Alberta, the Athabasca and other rivers feed the basin of the Mackenzie River, which has its outlet on the Beaufort Sea of the Arctic Ocean. Human population is not dense in the Rocky Mountains, with an average of four people per square kilometer and few cities with over 50,000 people. However, the human population grew in the Rocky Mountain states between 1950 and 1990; the forty-year statewide increases in population range from 35% in Montana to about 150% in Utah and Colorado. The populations of several mountain towns and communities have doubled in the last forty years. Jackson, increased 260%, from 1,244 to 4,472 residents, in forty years; the rocks in the Rocky Mountains were formed. The oldest rock is Precambrian metamorphic rock. There is Precambrian sedimentary argillite, dating back to 1.7 billion years ago. During the Paleozoic, western North America lay underneath a shallow sea, which deposited many kilometers of limestone and dolomite.
In the southern Rocky Mountains, near present-day Colorado, these ancestral rocks were disturbed by mountain building 300 Ma, during the Pennsylvanian. This mountain-building produced the Ancestral Rocky Mountains, they consisted of Precambrian metamorphic rock forced upward through layers of the limestone laid down in the shallow sea. The mountains eroded throughout the late Paleozoic and early Mesozoic, leaving extensive deposits of sedimentary rock. Terranes began colliding with the western edge of North America in the Mississippian, causing the Antler orogeny. For 270 million years, the focus of the effects of plate collisions were near the edge of the North American plate boundary, far to the west of the Rocky Mountain region, it was. The current Rocky Mountains arose in the Laramide orogeny from between 55 Ma. For the Canadi