Question: What latitude is defined as being the border of the continent where Leckie Range is located?

full_context: Document 1: 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 2: Leckie Range, Antarctica: The Leckie Range is a group of peaks 50 miles south of Edward VIII Bay, Enderby Land, Antarctica. The individual peaks were first shown on a 1947 Norwegian whalers chart by H.E. Hansen. The range was named by ANCA for Squadron Leader Douglas Leckie, RAAF, who commanded the RAAF Antarctic Flight at Mawson Station, 1956, and who piloted the Auster aircraft from which Phillip Law sighted and plotted these peaks.
Document 3: Leopold and Astrid Coast: The Leopold and Astrid Coast () is that portion of the coast of Antarctica lying between the western extremity of the West Ice Shelf, at 81°24′E, and Cape Penck, at 87°43′E. It is located in the eastern half of Princess Elizabeth Land. It was discovered and explored in an airplane flight from the Norwegian ship "Thorshavn" on January 17, 1934, by Lieutenant Alf Gunnestad and Captain Nils Larsen. The coast was named by Lars Christensen, Norwegian whaling magnate and leader of the expedition, for King Leopold and Queen Astrid of Belgium.
Document 4: 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 5: Lewis Chain: The Lewis Chain () is a chain of four rock nunataks on the west side of Gordon Glacier in the Shackleton Range of Antarctica. It was first mapped by the Commonwealth Trans-Antarctic Expedition (CTAE) in 1957, and was photographed by the U.S. Navy (trimetrogon aerial photography) in 1967. The chain was named by the UK Antarctic Place-Names Committee for Squadron Leader John H. Lewis, Royal Air Force (RAF), senior pilot of the RAF contingent of the CTAE, 1956–58.
Document 6: Mount Lacey: Mount Lacey () is a high, pyramidal, brown rock mountain with two sharp peaks, standing west of Mount Béchervaise in the Athos Range, Prince Charles Mountains, Antarctica. It was first sighted by an Australian National Antarctic Research Expeditions party led by John Béchervaise in November 1955 and plotted by R.H. Lacey, a surveyor at Mawson Station in 1955, for whom it is named.
Document 7: Mount Leckie: Mount Leckie () is a roughly circular outcrop about east of Martin Massif in the Porthos Range, Prince Charles Mountains, Antarctica. It was visited by the Australian National Antarctic Research Expeditions southern party (1956–57), and was named for Squadron Leader D.W. Leckie, Royal Australian Air Force, who commanded the RAAF Antarctic Flight at Mawson Station, 1956.
Document 8: 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 9: 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 10: Landers Peaks: The Landers Peaks () are a group of peaks east of Mount Braun, rising to about between Palestrina Glacier and Nichols Snowfield in the northern portion of Alexander Island, Antarctica. They were named by the Advisory Committee on Antarctic Names for Commander Robert J. Landers, U.S. Navy, an LC-130 aircraft pilot in Squadron VXE-6 during U.S. Navy Operation Deep Freeze, 1965 and 1966.
Document 11: Hansen Rocks: The Hansen Rocks are a group of five small islands lying just north of Holme Bay and the coast of Mac. Robertson Land, Antarctica, about northeast of the Sawert Rocks and Nella Rock, and about northwest of the Canopus Rocks. They were plotted from Australian National Antarctic Research Expeditions (ANARE) air photographs, and were named by the Antarctic Names Committee of Australia for Captain B.T. Hansen, master of the "Nella Dan" for ANARE relief voyages in 1968, 1969, 1970 and 1972.
Document 12: 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 13: 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 14: Leslie Peak: Leslie Peak () is a rock outcrop with a conical peak at its south end, about south of Mount Cook of the Leckie Range, Antarctica. It was plotted from Australian National Antarctic Research Expeditions air photos, and was named by the Antarctic Names Committee of Australia for Leslie Miller, a radio officer at Mawson Station in 1964, and a member of one of the survey parties which carried out a tellurometer traverse passing through the Leckie Range in 1965.
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: Leckie Range >> continent Answer: Antarctica
What latitude is defined as being Antarctica 's border? Answer: south of 60° S