Mountaineering, mountain climbing, or alpinism is a set of outdoor activities that involves ascending mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas that have become sports in their own right. Indoor climbing, sport climbing, and bouldering are also considered variants of mountaineering by some, but are part of a wide group of mountain sports.
Half Dome is a quartz monzonite batholith at the eastern end of Yosemite Valley in Yosemite National Park, California. It is a well-known rock formation in the park, named for its distinct shape. One side is a sheer face while the other three sides are smooth and round, making it appear like a dome cut in half. It stands at nearly 8,800 feet above sea level and is composed of quartz monzonite, an igneous rock that solidified several thousand feet within the Earth. At its core are the remains of a magma chamber that cooled slowly and crystallized beneath the Earth's surface. The solidified magma chamber was then exposed and cut in half by erosion, therefore leading to the geographic name Half Dome.
Longs Peak is a high and prominent mountain in the northern Front Range of the Rocky Mountains of North America. The 14,259-foot (4346 m) fourteener is located in the Rocky Mountain National Park Wilderness, 9.6 miles (15.5 km) southwest by south of the Town of Estes Park, Colorado, United States. Longs Peak is the northernmost fourteener in the Rocky Mountains of Colorado and the highest point in Boulder County and Rocky Mountain National Park. The mountain was named in honor of explorer Stephen Harriman Long and is featured on the Colorado state quarter.
Mount Waddington, once known as Mystery Mountain, is the highest peak in the Coast Mountains of British Columbia, Canada. Although it is lower than Mount Fairweather and Mount Quincy Adams, which straddle the United States border between Alaska and British Columbia, Mount Waddington is the highest peak that lies entirely within British Columbia. It and the subrange which surround it, known as the Waddington Range, stand at the heart of the Pacific Ranges, a remote and extremely rugged set of mountains and river valleys.
Mount Whitney is the highest mountain in the contiguous United States and the Sierra Nevada, with an elevation of 14,505 feet (4,421 m). It is in East–Central California, on the boundary between California's Inyo and Tulare counties, and 84.6 miles (136.2 km) west-northwest of North America's lowest point, Badwater Basin in Death Valley National Park, at 282 ft (86 m) below sea level. The mountain's west slope is in Sequoia National Park and the summit is the southern terminus of the John Muir Trail, which runs 211.9 mi (341.0 km) from Happy Isles in Yosemite Valley. The eastern slopes are in Inyo National Forest in Inyo County. Mount Whitney is ranked 18th by topographic isolation.
David Ross Brower was a prominent environmentalist and the founder of many environmental organizations, including the John Muir Institute for Environmental Studies (1997), Friends of the Earth (1969), Earth Island Institute (1982), North Cascades Conservation Council, and Fate of the Earth Conferences. From 1952 to 1969, he served as the first Executive Director of the Sierra Club, and served on its board three times: from 1941–1953; 1983–1988; and 1995–2000 as a petition candidate enlisted by reform-activists known as the John Muir Sierrans. As a younger man, he was a prominent mountaineer.
The eight-thousanders are the 14 mountains recognised by the International Mountaineering and Climbing Federation (UIAA) as being more than 8,000 metres (26,247 ft) in height above sea level, and sufficiently independent of neighbouring peaks. There is no precise definition of the criteria used to assess independence, and, since 2012, the UIAA has been involved in a process to consider whether the list should be expanded to 20 mountains. All eight-thousanders are located in the Himalayan and Karakoram mountain ranges in Asia, and their summits are in the death zone.
Mount Diablo is a mountain of the Diablo Range, in Contra Costa County of the eastern San Francisco Bay Area in Northern California. It is south of Clayton and northeast of Danville. It is an isolated upthrust peak of 3,849 feet, visible from most of the San Francisco Bay Area. Mount Diablo appears from many angles to be a double pyramid and has many subsidiary peaks. The largest and closest is North Peak, the other half of the double pyramid, which is nearly as high in elevation at 3,557 feet (1,084 m), and is about one mile northeast of the main summit.
Peak bagging or hill bagging is an activity in which hikers, climbers, and mountaineers attempt to reach a collection of summits, published in the form of a list. This activity has been popularized around the world, with lists such as 100 Peaks of Taiwan, four-thousand footers, 100 Famous Japanese Mountains, the Sacred Mountains of China, the Seven Summits, the Fourteeners of Colorado, and the eight-thousanders becoming the subject of mass public interest.
Grand Teton is the highest mountain in Grand Teton National Park, in Northwest Wyoming, and a classic destination in American mountaineering.
Norman Clyde was a mountaineer, mountain guide, freelance writer, nature photographer, and self-trained naturalist. He is well known for achieving over 130 first ascents, many in California's Sierra Nevada and Montana's Glacier National Park. He also set a speed climbing record on California's Mount Shasta in 1923. The Bancroft Library at the University of California, Berkeley has 1467 articles written by Clyde in its archives.
The Welsh 3000s are the 15 Welsh Munros. These are mountains in Wales that are over 3,000 feet (914.4 m). Geographically they fall within three ranges, but close enough to make it possible to reach all 15 summits within 24 hours, a challenge known as the Welsh 3000s challenge.
The Adirondack Forty-Sixers are an organization of hikers who have climbed all forty-six of the traditionally recognized High Peaks of the Adirondack Mountains. They are often referred to just as 46ers. As of 2021, there were nearly 14,000 registered forty-sixers. The organization primarily supports efforts to maintain the Adirondack High Peaks Wilderness, and encourages aspiring members through a correspondents program.
Mount Muir is a peak in the Sierra Nevada of California, 0.95 miles (1.5 km) south of Mount Whitney. This 14,018-foot (4,273 m) peak is named in honor of Scottish-born John Muir, a famous geologist, conservationist and founder of the Sierra Club. The southernmost section of the John Muir Trail contours along the west side of Mount Muir near its summit and ends on the summit of Mount Whitney.
Telescope Peak is the highest point within Death Valley National Park, in the U.S. state of California. It is also the highest point of the Panamint Range, and lies in Inyo County. From atop this desert mountain one can see for over one hundred miles in many directions, including west to Mount Whitney, and east to Charleston Peak. The mountain was named for the great distance visible from the summit.
North Palisade is the third-highest mountain in the Sierra Nevada range of California, and one of the state's small number of peaks over 14,000 feet, known as fourteeners. It is the highest peak of the Palisades group of peaks in the central part of the Sierra range. It sports a small glacier and several highly prized rock climbing routes on its northeast side.
Kaaterskill High Peak is one of the Catskill Mountains, located in the Town of Hunter in Greene County, New York, United States. It was once believed to be the highest peak in the entire range, but its summit, at 3,655 feet (1,114 m) in elevation, places it only 23rd among the Catskill High Peaks. It is, however, the fourth most prominent peak in the range. Due to its situation as the easternmost High Peak, its summit is just outside the watersheds of New York City's reservoirs in the region.
Glen Dawson was an American rock climber, mountaineer, antiquarian bookseller, publisher and environmentalist.
The Sierra Peaks Section (SPS) is a mountaineering society within the Angeles Chapter of the Sierra Club that serves to provide mountaineering activities for Sierra Club members in the Sierra Nevada, and to honor mountaineers who have summited Sierra Nevada peaks.
Claude Ewing Rusk, also known as C. E. Rusk, was an American mountaineer, lawyer, and author from Washington who pioneered routes up Mount Adams, Mount Baker, and Glacier Peak. He also ascended many other peaks in Washington, Oregon, and California.
