A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme , apex , peak ( mountain peak ), and zenith are synonymous .
7-575: Jewel Mountain is a 4,885-foot-elevation (1,489-meter) mountain summit in Alaska , United States. Jewel Mountain is located 29 miles (47 km) southeast of Anchorage and 7.5 miles (12.1 km) north of Girdwood in the Chugach Mountains , on land managed by Chugach National Forest . Precipitation runoff from the mountain drains into Crow Creek → Glacier Creek → Turnagain Arm . Topographic relief
14-469: A certain cutoff value for the quantities, are often considered subsummits (or subpeaks ) of the higher peak, and are considered part of the same mountain. A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top. Summit may also refer to the highest point along a line, trail, or route. The highest summit in the world is Mount Everest with a height of 8,848.86 m (29,031.7 ft) above sea level . The first official ascent
21-574: Is a subpeak. In many parts of the Western United States , the term summit can also be used for the highest point along a road, highway, or railroad, more commonly referred to as a pass . 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 . This can lead to confusion as to whether
28-564: Is located in a subarctic climate zone with long, cold, snowy winters, and cool summers. Weather systems coming off the Gulf of Alaska are forced upwards by the Chugach Mountains ( orographic lift ), causing heavy precipitation in the form of rainfall and snowfall. Winter temperatures can drop below −10 °F with wind chill factors below −20 °F. This climate supports the Raven Glacier to
35-532: Is significant as the summit rises approximately 1,800 feet (550 m) above Crow Creek in 0.4 miles (0.64 km). The Iditarod National Historic Trail traverses the west slope of the mountain. The mountain's local name was reported by the Army Map Service in 1942, and the toponym has been officially adopted by the U.S. Board on Geographic Names . Based on the Köppen climate classification , Jewel Mountain
42-510: The north, Milk Glacier to the east, and the Alyeska ski area six miles (9.7 km) to the south. Summit The term top ( mountain top ) is generally used only for a mountain peak that is 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
49-453: Was made by Tenzing Norgay and 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 International Climbing and Mountaineering Federation 's definition of a 4,000 m peak is that it has a prominence of 30 metres (98 ft) or more; it is a mountain summit if it has a prominence of at least 300 metres (980 ft). Otherwise, it
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