Question: What latitude is defined as being the border of the continent where Taylor Ledge is located?

full_context: Document 1: Natal Ridge: Natal Ridge is a prominent snow-free terraced ridge forming part of the north boundary of the Two Step Cliffs massif located in the southeast portion of Alexander Island, Antarctica. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) in 1993 in recognition of the geomorphological and biological surveys conducted by scientists from the University of Natal in the Mars Glacier party.
Document 2: Taylor Ledge: Taylor Ledge is a notable flat-topped ridge displaying abrupt cliffs north and south, situated between Boyce Ridge and Mount Shinn on the west slope of Sentinel Range, Ellsworth Mountains in Antarctica. The upper surface of the feature is ice covered and relatively level except for 3373-meter Knutzen Peak on the north edge.
Document 3: 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 4: Pagoda Ridge: Pagoda Ridge () is a ridge with a small peak resembling a pagoda at the summit, located between Phobos Ridge and Deimos Ridge on the north side of Saturn Glacier, in southeast Alexander Island, Antarctica. The feature was mapped from trimetrogon air photography taken by the Ronne Antarctic Research Expedition, during 1947 and 1948, and from surveying by the Falkland Islands Dependencies Survey, 1948-50. This descriptive name was applied by the United Kingdom Antarctic Place-Names Committee.
Document 5: 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 6: 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 7: Boyce Ridge: Boyce Ridge is a 4.4-mile (7-km) ridge that extends westward from Taylor Ledge to the head of Nimitz Glacier in Sentinel Range, Ellsworth Mountains in Antarctica. The ridge adjoins the north flank of lower Branscomb Glacier.
Document 8: 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 9: Ellsworth Mountains: The Ellsworth Mountains are the highest mountain ranges in Antarctica, forming a long and wide chain of mountains in a north to south configuration on the western margin of the Ronne Ice Shelf in Marie Byrd Land. They are bisected by Minnesota Glacier to form the Sentinel Range to the north and the Heritage Range to the south. The former is by far the higher and more spectacular with Mount Vinson (4,892 m) constituting the highest point on the continent. Geologically, they are part of the Antarctandes which stretch from the Antarctic Peninsula to Cape Adare on the western shore of the Ross Sea. The Antarctandes form the southernmost arc of the Pacific 'Ring of Fire'. The mountains are located within the Chilean Antarctic territorial claim but outside of the Argentinian and British ones.
Document 10: Knutzen Peak: Knutzen Peak is a sharp, rocky summit of elevation standing on the north edge of Taylor Ledge in the Sentinel Range of the Ellsworth Mountains, Antarctica. It surmounts Branscomb Glacier to the east and south.
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: 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 13: Toros Peak: Toros Peak (, ‘Vrah Toros’ \'vr&h to-'ros\) is the rocky twin summit peak rising to 3000 m in Zinsmeister Ridge on the northeast side of Vinson Massif in Sentinel Range, Ellsworth Mountains in Antarctica, and surmounting Dater Glacier to the east and its tributary Hinkley Glacier to the northwest.
Document 14: 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"
Document 15: 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.
ground_truth: south of 60° S
sub_queries: Taylor Ledge >> continent Answer: Antarctica
What latitude is defined as being Antarctica 's border? Answer: south of 60° S