Question: What latitude is defined as being the border of the continent where Leningradskiy Bay is found?

full_context: Document 1: 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 2: Lazarev Ice Shelf: The Lazarev Ice Shelf is that part of the ice shelf fringing the Princess Astrid Coast of Queen Maud Land, Antarctica, that lies between Leningradskiy Island and Verblyud Island. It is part of the western Riiser-Larsen Sea and is about long. The ice shelf was first photographed from the air and mapped by the Third German Antarctic Expedition, 1938–39. It was explored and mapped by the Soviet Antarctic Expedition in 1959, and named for Lieutenant (later Admiral) Mikhail P. Lazarev, commander of the sloop "Mirnyy".
Document 3: 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 4: Lednikov Bay: Lednikov Bay () is a small bay just west of McDonald Bay on the coast of Antarctica. The bay was mapped in 1955 from aerial photos taken by U.S. Navy Operation Highjump, 1946–47. It was remapped by the Soviet expedition of 1956 and named "Bukhta Lednikovaya" (glacier bay), probably because of its location at the terminus of a small glacier.
Document 5: Sopot Ice Piedmont: Sopot Ice Piedmont (Lednik Sopot \'led-nik 'so-pot\) is situated on Burgas Peninsula, Livingston Island in the South Shetland Islands, Antarctica, northeast of Iskar Glacier and north of Ropotamo, Strandzha and Pautalia Glaciers. It extends 7.5 km in east-west direction and 2.4 km in south-north direction, drains the northern slopes of Delchev Ridge east of Delchev Peak and Ghiaurov Peak, and flows northward into Moon Bay between Rila Point to the west and Malyovitsa Crag near Renier Point to the east.
Document 6: 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 7: 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 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: Voyeykov Ice Shelf: Voyeykov Ice Shelf (), is an ice shelf fringing the coast between Paulding Bay and Cape Goodenough, Antarctica. Mapped by the Soviet Antarctic Expedition (SovAE) (1958) and named after (1842–1916), a Russian climatologist.
Document 10: 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 11: Leningradskiy Island: Leningradskiy Island is an ice-covered island situated at the head of Leningradskiy Bay at the western margin of the Lazarev Ice Shelf, Queen Maud Land, Antarctica. The feature rises nearly above the general level of the ice shelf which surrounds all but the northern side. It was discovered and mapped by the Soviet Antarctic Expedition in 1961, and named in association with Leningradskiy Bay.
Document 12: 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 13: 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 14: Moscow University Ice Shelf: Moscow University Ice Shelf () is a narrow ice shelf, about long, which fringes the Sabrina Coast of Antarctica between Totten Glacier and Paulding Bay. Dalton Iceberg Tongue extends north from the eastern part of the shelf. The feature was partly delineated from aerial photographs taken by U.S. Navy Operation Highjump in 1946–47, and further photographed and mapped by the Australian National Antarctic Research Expeditions and the Soviet Antarctic Expedition in 1958. It was named by the Soviet expedition after Moscow University.
Document 15: Leningradskiy Bay: Leningradskiy Bay is an indentation in the ice shelf fringing Queen Maud Land, Antarctica, immediately west of Lazarev Ice Shelf. Leningradskiy Island is at the head of the bay. It was mapped by the Soviet Antarctic Expedition in 1959 and named by them for the Russian city that at that time was named Leningrad.
ground_truth: south of 60° S
sub_queries: What is the continent of Leningradskiy Bay? Answer: Antarctica
What latitude is defined as being Antarctica 's border? Answer: south of 60° S