The Churchill Mountains is a major range of mountains and associated elevations bordering the western side of the Ross Ice Shelf , between Byrd Glacier and Nimrod Glacier . They are south of the Britannia Range and north of the Geologists Range , Miller Range and Queen Elizabeth Range .
6-543: Several of the range's highest summits , including Mount Egerton , Mount Field , Mount Nares , Mount Wharton , and Mount Albert Markham were first seen and named by the British National Antarctic Expedition of 1901–1904 under Robert Falcon Scott . The mountains were mapped in detail by the USGS from tellurometer surveys during 1960–61, and by United States Navy air photos in 1960. They were named by
12-556: 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 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
18-450: 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 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
24-417: 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 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
30-416: 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 . 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
36-705: The United States US-ACAN for Sir Winston Churchill . Download coordinates as: The Churchill mountains extend from the Byrd Glacier south to the Nimrod Glacier . The Antarctic Plateau is to their west, with various groups of nunataks , and the Ross Ice Shelf is to their east. The higher mountains and peaks include: Sub−ranges of the Churchill Mountains include: Summit A summit
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