Question: The boundary of Mason Peaks' continent is defined by what latitude?

full_context: Document 1: Mason Peaks: The Mason Peaks () are a prominent serrated ridge with several peaks, standing northwest of Mount Harding in the Grove Mountains of Antarctica. The feature was mapped by Australian National Antarctic Research Expeditions from air photos, 1956–60, and was named by the Antarctic Names Committee of Australia for A.C. Mason, a topographic draftsman at the Division of National Mapping, Australian Department of National Development, who has contributed substantially to the compilation of Antarctic maps.
Document 2: National Antarctic Program: Till date 48 countries have signed the Antarctic Treaty which was drafted and negotiated back in 1959. Out of these, only 28 countries have the Consultative status i.e. these Parties have the right to participate in Antarctic Treaty Consultative Meetings (ATCM) and are accordingly known as Consultative Parties and their presence in Antarctica is shown by carrying substantial research there.
Document 3: Grove Mountains: The Grove Mountains are a large, scattered group of mountains and nunataks extending over an area of approximately , located east of the Mawson Escarpment in American Highland, Antarctica. They were first photographed from the air by aircraft of U.S. Navy Operation Highjump, 1946–47, and named by the Antarctic Names Committee of Australia for Squadron Leader I.L. Grove, a Royal Australian Air Force pilot with the Australian National Antarctic Research Expeditions, who made a November 1958 landing in these mountains.
Document 4: Francis Peaks: The Francis Peaks () are a group of peaks and ridges southeast of Mount Gordon in the Scott Mountains of Enderby Land, Antarctica. They were plotted from air photos taken from Australian National Antarctic Research Expeditions aircraft in 1956, and were named by the Antarctic Names Committee of Australia for R.J. Francis, a physicist at Mawson Station in 1961.
Document 5: Antarctica: New claims on Antarctica have been suspended since 1959 although Norway in 2015 formally defined Queen Maud Land as including the unclaimed area between it and the South Pole. Antarctica's status is regulated by the 1959 Antarctic Treaty and other related agreements, collectively called the Antarctic Treaty System. Antarctica is defined as all land and ice shelves south of 60° S for the purposes of the Treaty System. The treaty was signed by twelve countries including the Soviet Union (and later Russia), the United Kingdom, Argentina, Chile, Australia, and the United States. It set aside Antarctica as a scientific preserve, established freedom of scientific investigation and environmental protection, and banned military activity on Antarctica. This was the first arms control agreement established during the Cold War.
Document 6: Wilkes Land: Wilkes Land is a large district of land in eastern Antarctica, formally claimed by Australia as part of the Australian Antarctic Territory, though the validity of this claim has been placed for the period of the operation of the Antarctic Treaty, to which Australia is a signatory. It fronts on the southern Indian Ocean between Queen Mary Coast and Adelie Land, extending from Cape Hordern in 100°31' E to Pourquoi Pas Point, in 136°11' E. The region extends as a sector about 2600 km towards the South Pole, with an estimated land area of 2,600,000 km², mostly glaciated. It is further subdivided in the following coastal areas which can also be thought of as sectors extending to the South Pole:
Document 7: Antarctica: In 1983, the Antarctic Treaty Parties began negotiations on a convention to regulate mining in Antarctica. A coalition of international organizations launched a public pressure campaign to prevent any minerals development in the region, led largely by Greenpeace International, which established its own scientific station—World Park Base—in the Ross Sea region and conducted annual expeditions to document environmental effects of humans on Antarctica. In 1988, the Convention on the Regulation of Antarctic Mineral Resources (CRAMRA) was adopted. The following year, however, Australia and France announced that they would not ratify the convention, rendering it dead for all intents and purposes. They proposed instead that a comprehensive regime to protect the Antarctic environment be negotiated in its place. The Protocol on Environmental Protection to the Antarctic Treaty (the "Madrid Protocol") was negotiated as other countries followed suit and on 14 January 1998 it entered into force. The Madrid Protocol bans all mining in Antarctica, designating Antarctica a "natural reserve devoted to peace and science".
Document 8: Wilkes Land: Wilkes Land is a large district of land in eastern Antarctica, formally claimed by Australia as part of the Australian Antarctic Territory, though the validity of this claim has been placed for the period of the operation of the Antarctic Treaty, to which Australia is a signatory. It fronts on the southern Indian Ocean between Queen Mary Coast and Adelie Land, extending from Cape Hordern in 100°31' E to Pourquoi Pas Point, in 136°11' E. The region extends as a sector about 2600 km towards the South Pole, with an estimated land area of 2,600,000 km², mostly glaciated. It is further subdivided in the following coastal areas which can also be thought of as sectors extending to the South Pole:
Document 9: Gray Peak (Antarctica): Gray Peak is a prominent rock summit in the Queen Maud Mountains of Antarctica. The mountain is located on the west side of Canyon Glacier, opposite the Hughes Range. The mountain was named in 1958 by the Advisory Committee on Antarctic Names (US-ACAN), after Thomas I. Gray, Jr., a meteorologist at Little America V.
Document 10: Harrow Peaks: The Harrow Peaks are a group of rugged peaks in the eastern part of the Random Hills, bounded on the north by Clausnitzer Glacier and on the east by Tinker Glacier, overlooking the northwestern extremity of Wood Bay on the coast of Victoria Land, Antarctica. They were mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1955–63, and were named by the Advisory Committee on Antarctic Names for Geoffrey N. Harrow, a biologist at McMurdo Station, 1965–66 season.
Document 11: Antarctica: Although coal, hydrocarbons, iron ore, platinum, copper, chromium, nickel, gold and other minerals have been found, they have not been in large enough quantities to exploit. The 1991 Protocol on Environmental Protection to the Antarctic Treaty also restricts a struggle for resources. In 1998, a compromise agreement was reached to place an indefinite ban on mining, to be reviewed in 2048, further limiting economic development and exploitation. The primary economic activity is the capture and offshore trading of fish. Antarctic fisheries in 2000–01 reported landing 112,934 tonnes.
Document 12: Antarctica: The Protocol on Environmental Protection to the Antarctic Treaty (also known as the Environmental Protocol or Madrid Protocol) came into force in 1998, and is the main instrument concerned with conservation and management of biodiversity in Antarctica. The Antarctic Treaty Consultative Meeting is advised on environmental and conservation issues in Antarctica by the Committee for Environmental Protection. A major concern within this committee is the risk to Antarctica from unintentional introduction of non-native species from outside the region.
Document 13: Martens Peak: Martens Peak () is a rock peak in the northeastern part of the Ford Nunataks, in the Wisconsin Range of the Horlick Mountains, Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1960–64, and was named by the Advisory Committee on Antarctic Names for Edward A. Martens, a radioman with the winter party at Byrd Station in 1960 and at McMurdo Station in 1965.
Document 14: MacPherson Peak: MacPherson Peak () is a prominent rock peak rising to on the northwest end of Pomerantz Tableland, in the Usarp Mountains of Antarctica. It was mapped by the United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960–62, and was named by the Advisory Committee on Antarctic Names for Frank L. MacPherson, U.S. Army, a helicopter mechanic in the field supporting the USGS surveys Topo North–South (1961–62) and Topo East–West (1962–63), the latter including a survey of this peak.
Document 15: Australian Antarctic Data Centre: Article III.1.c of the Antarctic Treaty states that "to the greatest extent feasible and practicable" ... "scientific observations and results from Antarctica shall be exchanged and made freely available"
ground_truth: south of 60° S
sub_queries: Mason Peaks >> continent Answer: Antarctica
What latitude is defined as being Antarctica 's border? Answer: south of 60° S