Square kilometre: Difference between revisions

Browse history interactively ← Previous editContent deleted Content addedVisual WikitextInline

Revision as of 04:10, 27 April 2010 editLucienBOT (talk \| contribs)103,060 editsm robot Adding: af, als, an, ar, ast, ba, be, be-x-old, bg, bs, ca, cs, cy, da, de, dv, el, eo, es, eu, ext, fa, fi, fr, fy, gl, hak, he, hi, hr, hsb, hu, hy, ia, id, is, it, ja, jv, ka, km, ko, la, lb, li, lt, lv, mg, mk, ms, nds-nl, nl, nn, no, oc, p← Previous edit		Latest revision as of 13:27, 15 September 2024 edit undo14.2.125.235 (talk) →See also: two different frequency ranges for the sites. SKA page
(229 intermediate revisions by more than 100 users not shown)
Line 1:		Line 1:
			{{Short description\|Unit of area}}
	whooo obama this is the greatest thing ever
			{{Infobox unit
			\| name = square kilometre
			\| image = Comparison of units of area.png
			\| caption = The square kilometre (red square) compared to other areas, including a ] (the entire yellow square)
			\| standard = ]
			\| quantity = ]
			\| symbol = km<sup>2</sup>
			\| units1 = ]
			\| inunits1 = {{ubl\|{{val\|1000000\|u=m2}}\|{{val\|100\|u=ha}}}}
			\| units2 = ]/]
			\| inunits2 = {{ubl\|{{val\|0.3861\|u=mi2}}\|\|{{val\|247.1\|u=acres}}}}
			}}

			The '''square ]''' ('''square kilometer''' in American spelling; symbol: '''km<sup>2</sup>''') is a multiple of the ], the ] ] of ] or ].
	]

	]
			1 km<sup>2</sup> is equal to:
	]
			* 1,000,000 square metres (m<sup>2</sup>)
	]
			* 100 ]s (ha)
	]
			It is also approximately equal to:
	]
			* 0.3861 ]s {{#tag:ref\|There are 0.386102159 international square miles in a square kilometer while there are 0.386100614 US Survey square miles in the same measure. This is because the US Survey measures are very slightly larger than the international measures.<ref name="unitconversion">{{cite web \|url=http://www.unitconversion.org/unit_converter/area-s.html \|title=UnitConversion.org Area Converter\|year=2009 \|work=web page \|publisher=UnitConversion.org \|access-date=4 July 2012}}</ref>}}
	]
			* 247.1 ]s {{#tag:ref\|There are 247.105381467 international acres in a square kilometre while there are only 247.104393047 of the very slightly larger US Survey acres.<ref name="unitconversion"/>}}
	]

	]
			Conversely:
	]
			*1 m<sup>2</sup> = 0.000001 (10<sup>−6</sup>) km<sup>2</sup>
	]
			*1 hectare = 0.01 (10<sup>−2</sup>) km<sup>2</sup>
	]
			*1 square mile = {{val\|2.5899\|u=km2}} {{#tag:ref\|An International square mile equals {{val\|2.58998811\|u=km2}} while the slightly larger US Survey square mile equals {{val\|2.58999847\|u=km2}}.<ref name="unitconversion"/>}}
	]
			*1 acre = about {{val\|0.004047\|u=km2}} {{#tag:ref\|1 acre (International) = {{val\|0.004046856\|u=km2}} while 1 acre (US Survey) = {{val\|0.004046873\|u=km2}} <ref name="unitconversion"/>}}
	]

	]
			The symbol "km<sup>2</sup>" means (km)<sup>2</sup>, square kilometre or kilometre squared and not k(m<sup>2</sup>), kilo–square metre. For example, 3 km<sup>2</sup> is equal to {{gaps\|3\|×\|(1,000\|m)<sup>2</sup>}} = 3,000,000 m<sup>2</sup>, not 3,000 m<sup>2</sup>.
	]

	]
			==Examples of areas of 1 square kilometre==
	]
			===Topographical map grids===
	]
			]Topographical map grids are worked out in metres, with the grid lines being 1,000 metres apart.
	]
			* 1:100,000 maps are divided into squares representing 1 km<sup>2</sup>, each square on the map being one square centimetre in area and representing 1 km<sup>2</sup> on the surface of the Earth.
	]
			* For 1:50,000 maps, the grid lines are 2 cm apart. Each square on the map is 2 cm by 2 cm (4 cm<sup>2</sup>) and represents 1 km<sup>2</sup> on the surface of the Earth.
	]
			* For 1:25,000 maps, the grid lines are 4 cm apart. Each square on the map is 4 cm by 4 cm (16 cm<sup>2</sup>) and represents 1 km<sup>2</sup> on the surface of the Earth.
	]
			In each case, the grid lines enclose one square kilometre.
	]

	]
			===Medieval city centres===
	]

	]
			], Netherlands, dated 1659. The walls enclosed an area of about 1 square kilometre.]]
	]
			The area enclosed by the walls of many European medieval cities were about one square kilometre. These walls are often either still standing or the route they followed is still clearly visible, such as in ], where the wall has been replaced by a ring road, or in ], where the wall has been replaced by gardens. The approximate area of the old walled cities can often be worked out by fitting the course of the wall to a ] or an oval (]). Examples include:
	]
			*], Netherlands (See map alongside) {{coord\|52\|0\|54\|N\|4\|21\|34\|E}}
	]
			:The walled city of Delft was approximately rectangular.
	]
			::The approximate length of rectangle was about {{convert\|1.30\|km\|mi}}.<ref name=GE>Measurements taken from ]</ref>
	]
			::The approximate width of the rectangle was about {{convert\|0.75\|km\|mi}}.<ref name=GE/>
	]
			::A perfect rectangle with these measurements has an area of 1.30×0.75 = 0.9 km<sup>2</sup>
	]

	]
			*] (Italy) {{coord\|43\|50\|38\|N\|10\|30\|2\|E}}
	]
			:The medieval city is roughly rectangular with rounded north-east and north-west corners.
	]
			::The maximum distance from east to west is {{convert\|1.36\|km\|mi}}.<ref name=GE/>
	]
			::The maximum distance from north to south is {{convert\|0.80\|km\|mi}}.<ref name=GE/>
	]
			::A perfect rectangle of these dimensions would be 1.36×0.80 = 1.088 km<sup>2</sup>.
	]

	]
			*] (Belgium) {{coord\|51\|12\|39\|N\|3\|13\|28\|E}}
	]
			:The medieval city of Bruges, a major centre in ], was roughly oval or ] in shape with the longer or ] running north and south.
	]
			::The maximum distance from north to south (semi-major axis) is {{convert\|2.53\|km\|mi}}.<ref name=GE/>
	]
			::The maximum distance from east to west (semi-minor axis) is {{convert\|1.81\|km\|mi}}.<ref name=GE/>
	]
			::A perfect ellipse of these dimensions would be 2.53 × 1.81 × (]/4) = 3.597 km<sup>2</sup>.
	]

	]
			*] United Kingdom {{coord\|53\|12\|1\|N\|2\|52\|45\|W}}
	]
			:Chester is one of the smaller English cities that has a near-intact city wall.<ref>{{cite web
	]
			\|url = http://www.chesterwalls.info/chestermap.html
	]
			\|title = Chester: A Virtual Stroll around the Walls
	]
			\|first = Steve
	]
			\|last = Howe
	]
			\|access-date = 7 October 2012}}</ref>
	]
			::The distance from ] to ] is about 855 metres.<ref name=GE/>
	]
			::The distance from ] to Westgate is about 589 metres.<ref name=GE/>
	]
			::A perfect rectangle of these dimensions would be (855/1000) × (589/1000) = 0.504 km<sup>2</sup>.
	]

	]
			===Parks===
	]
			Parks come in all sizes; a few are almost exactly one square kilometre in area. Here are some examples:
	]
			* ], UK.<ref>{{cite web \|url=http://www.medway.gov.uk/environmentandplanning/countrysidesites/riversidecountrypark.aspx \|title=Medway Council Riverside Country Park \|year=2012 \|work=web page \|publisher=Medway Council \|access-date=9 June 2012 \|url-status=dead \|archive-url=https://web.archive.org/web/20120419013431/http://www.medway.gov.uk/environmentandplanning/countrysidesites/riversidecountrypark.aspx \|archive-date=19 April 2012 }}</ref>
	]
			* Brierley Forest Park, UK.<ref>{{cite web \|url=http://www.ashfield-dc.gov.uk/ccm/navigation/leisure-and-culture/tourism-and-heritage/country-parks-and-trails/brierley-forest-park-visitor-centre-/;jsessionid=F08C5878102681F9392CAAFF7EAB8DF7 \|title=Ashfield Brierley Forest Park \|year=2012 \|work=web page \|publisher=Ashfield District Council \|access-date=9 June 2012 \|url-status=dead \|archive-url=https://web.archive.org/web/20121108034331/http://www.ashfield-dc.gov.uk/ccm/navigation/leisure-and-culture/tourism-and-heritage/country-parks-and-trails/brierley-forest-park-visitor-centre-/;jsessionid=F08C5878102681F9392CAAFF7EAB8DF7 \|archive-date=8 November 2012 }}</ref>
	]
			* ], California, US <ref>{{cite web \|url=http://www.parks.ca.gov/?page_id=22277 \|title=California Department of Parks and Recreation Rio de Los Angeles State Park \|year=2012 \|work=web page \|publisher=State of California\|access-date=9 June 2012}}</ref>
	]
			* Jones County Central Park, Iowa, US.<ref>{{cite web \|url=http://www.jonescountytourism.com/parks/centralpark.html \|title=Parks & Recreation Central Park, Center Junction, Iowa \|work=web page \|publisher=Jones County Tourism Association \|access-date=9 June 2012}}</ref>
	]
			* Kiest Park, Dallas, Texas, US <ref>{{cite web \|url=http://friendsofoakcliffparks.org/kiesthistory.htm \|title=A History of Kiest Park \|year=2010 \|work=web page \|publisher=Friends of Oak Cliff Parks \|access-date=9 June 2012 \|url-status=dead \|archive-url=https://web.archive.org/web/20120605053208/http://friendsofoakcliffparks.org/kiesthistory.htm \|archive-date=5 June 2012 }}</ref>
	]
			* Hole-in-the-Wall Park & Campground, Grand Manan Island, Bay of Fundy, New Brunswick, Canada <ref>{{cite web \|url=http://www.grandmanancamping.com/maps.php \|title=Hole-in-the-Wall Park & Campground \|year=2012 \|work=web page \|publisher=Hole-in-the-Wall Park & Campground\|access-date=9 June 2012}}</ref>
	]
			* Downing Provincial Park, British Columbia, Canada <ref>{{cite web \|url=http://www.env.gov.bc.ca/bcparks/explore/parkpgs/downing/ \|title=BC Parks Downing Provincial Park \|work=web page \|publisher=British Columbia Ministry of Environment \|access-date=9 June 2012}}</ref>
	]
			* Citadel Park, Poznan, Poland <ref>{{cite web \|url=http://culture.poland.travel/poznan/citadel-park \|title=Citadel Park \|work=web page \|publisher=Poland Travel \|access-date=9 June 2012}}</ref>
	]
			* Sydney Olympic Park, Sydney, Australia, contains 6.63 square kilometres of wetlands and waterways.<ref>{{cite web \|url=http://www.sopa.nsw.gov.au/media/pdfs/publications/fact_sheets/parklands_fact_sheet \|title=Sydney Olympic Park Parklands Fact Sheet \|work=web page \|publisher=Sydney Olympic Park Authority \|access-date=9 June 2012}}</ref>
	]

	]
			===Golf courses===
	]
			Using the figures published by golf course architects Crafter and Mogford, a course should have a fairway width of 120 metres and 40 metres clear beyond the hole. Assuming a {{convert\|6000\|m\|yd\|adj=on}} 18-hole course, an area of 80 hectares (0.8 square kilometre) needs to be allocated for the course itself.<ref>{{cite web
	]
			\|url = http://www.golfstrategies.com.au/graphics/articles/FS.6.Safety.pdf
	]
			\|title = Golf Course Safety
	]
			\|publisher = Crafter + Mogford, golf course architects
	]
			\|access-date = 5 October 2012}}</ref><ref group=Note>Assume that each hole requires (6000÷18 + 40) = 373 metres in length. The area needed is (18 × 373 × 120 ÷ 10,000) = 80.64 ha (1 hectare = 10,000 square metres).</ref> Examples of golf courses that are about one square kilometre include:
	]
			* Manchester Golf Club, UK <ref name="Manchester Golf Club Ltd">{{cite web \|url=http://www.mangc.co.uk/visitors.htm \|title=Visitor Information \|work=web page \|publisher=Manchester Golf Club Ltd \|access-date=11 June 2012 \|url-status=dead \|archive-url=https://web.archive.org/web/20120525133739/http://www.mangc.co.uk/visitors.htm \|archive-date=25 May 2012 }}</ref>
	]
			* Northop Country Park, Wales, UK <ref name="Manchester Golf Club Ltd"/>
	]
			* The Trophy Club, Lebanon, Indiana, US <ref>{{cite web \|url=http://thetrophyclubgolf.com/ \|title=Welcome to the Trophy Club \|work=web page \|publisher=The Trophy Club \|access-date=11 June 2012}}</ref>
	]
			* Qingdao International Country Golf Course, Qingdao, Shandong, China
	]
			* Arabian Ranches Golf Club, Dubai <ref>{{cite web \|url=http://www.7daysindubai.com/sport-and-leisure/golf-courses/arabian-ranches-golf-club/business-15488895-detail/business.html \|archive-url=https://web.archive.org/web/20120908003417/http://www.7daysindubai.com/sport-and-leisure/golf-courses/arabian-ranches-golf-club/business-15488895-detail/business.html \|archive-date=2012-09-08 \|title=Arabian Ranches Golf Club \|work=7 Days in Dubai \|publisher= Catchpole Communications FZ-LLC, Al Sidra Media LLC. \|access-date=1 April 2018}}</ref>
	]
			* Sharm el Sheikh Golf Courses: Sharm el Sheikh, South Sinai, Egypt <ref>{{cite web \|url=http://www.sharm-el-sheikh.world-guides.com/sharm_el_sheikh_golf.html\|title=Sharm el Sheikh Golf Courses: Sharm el Sheikh, South Sinai, Egypt \|work=web page \|publisher=TravelSmart Ltd: World Guides \|access-date=11 June 2012}}</ref>
	]
			* Belmont Golf Club, Lake Macquarie, NSW, Australia <ref>{{cite web \|url=http://www.belmontgolf.com.au/layouts/mp_standard/Template.aspx?page=History\|title=Belmont Golf Club, Lake Macquarie, History \|work=web page \|publisher=Belmont Golf Club \|access-date=11 June 2012}}</ref>
	]

	]
			===Other areas of one square kilometre or thereabouts===
	]
			* ] is almost 1 square kilometre in area.<ref>{{cite web \|url=https://www.jewishvirtuallibrary.org/jsource/vie/Jerusalem2.html \|title=Jerusalem - The Old City \|year=2012 \|work=web page \|publisher=The American-Israeli Cooperative Enterprise \|access-date=6 July 2012}} Actually, about 89 hectares.</ref>
	]
			*Milton Science Park, Oxfordshire, UK.<ref>{{cite web \|url=http://www.sciencevale.com/milton/ \|title=Science Vale UK \|work=web page \|publisher= Abbey House\|access-date=7 July 2012}}
			</ref>
			* Mielec Industrial Park, Mielec, Poland <ref>{{cite web \|url=http://www.paiz.gov.pl/investment_support/industrial_and_technology_parks/mielec \|title=Invest in Poland \|work=web page \|publisher=Polish information and foreign investment agency \|access-date=7 July 2012}}</ref>
			* The Guildford Campus of Guildford Grammar School, South Guildford, Western Australia<ref>{{cite web \|url=http://www.waterhall.com.au/lifestyle/history/guildford \|archive-url=https://web.archive.org/web/20130410123141/http://www.waterhall.com.au/lifestyle/history/guildford \|archive-date=10 April 2013 \|title=Guildford Grammar School\|work=waterhall.com.au \|access-date=2 April 2018 }}</ref>
			* Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat, India <ref>{{cite web \|url=http://www.svnit.ac.in/conferences/fmfp2012/about%20us.html \|title=39th National Conference on Fluid Mechanics and Fluid Power \|work=web page \|publisher=Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology (SVNIT) \|access-date=7 July 2012 \|url-status=dead \|archive-url=https://web.archive.org/web/20120719081320/http://svnit.ac.in/conferences/fmfp2012/about%20us.html \|archive-date=19 July 2012 }}</ref>
			* Île aux Cerfs Island, near the east coast of Mauritius.<ref>{{cite web \|url=http://www.amity.edu/mauritius/MauritiusAttraction.asp \|title=MauritiusAttraction \|date=2011 \|website=Amity Institute of Higher Education, Mauritius \|publisher=Amity Institute of Higher Education \|access-date=27 June 2013 \|url-status=dead \|archive-url=https://web.archive.org/web/20131012085638/http://www.amity.edu/Mauritius/MauritiusAttraction.asp \|archive-date=12 October 2013 }}</ref>
			*] Island, Hong Kong<ref>{{cite web\|url=http://e-cgo.org.hk/travel/en/trip-detail?id=10\|title=Peng Chau<Leisure Line - Barrier-Free Information Website - Hong Kong Federation of Handicapped Youth\|website=e-cgo.org.hk}}</ref>

			==See also==
			*]
			*] for the precise meaning of the prefix "k"
			*], a proposed ] in both ] and ], which is intended to have a collecting area of approximately 1 km<sup>2</sup>

			==Notes==
			{{Reflist\|group = Note}}

			==References==
			{{reflist}}

			]
			]

Latest revision as of 13:27, 15 September 2024

Unit of area

square kilometre
The square kilometre (red square) compared to other areas, including a square mile (the entire yellow square)
General information
Unit system	SI units
Unit of	area
Symbol	km
Conversions
1 km in ...	... is equal to ...

SI units	1000000 m 100 ha
Imperial/US	0.3861 sq mi 247.1 acres

The square kilometre (square kilometer in American spelling; symbol: km) is a multiple of the square metre, the SI unit of area or surface area.

1 km is equal to:

1,000,000 square metres (m)
100 hectares (ha)

It is also approximately equal to:

0.3861 square miles
247.1 acres

Conversely:

1 m = 0.000001 (10) km
1 hectare = 0.01 (10) km
1 square mile = 2.5899 km
1 acre = about 0.004047 km

The symbol "km" means (km), square kilometre or kilometre squared and not k(m), kilo–square metre. For example, 3 km is equal to 3×(1,000m) = 3,000,000 m, not 3,000 m.

Examples of areas of 1 square kilometre

Topographical map grids

Topographical map grids are worked out in metres, with the grid lines being 1,000 metres apart.

1:100,000 maps are divided into squares representing 1 km, each square on the map being one square centimetre in area and representing 1 km on the surface of the Earth.
For 1:50,000 maps, the grid lines are 2 cm apart. Each square on the map is 2 cm by 2 cm (4 cm) and represents 1 km on the surface of the Earth.
For 1:25,000 maps, the grid lines are 4 cm apart. Each square on the map is 4 cm by 4 cm (16 cm) and represents 1 km on the surface of the Earth.

In each case, the grid lines enclose one square kilometre.

Medieval city centres

The area enclosed by the walls of many European medieval cities were about one square kilometre. These walls are often either still standing or the route they followed is still clearly visible, such as in Brussels, where the wall has been replaced by a ring road, or in Frankfurt, where the wall has been replaced by gardens. The approximate area of the old walled cities can often be worked out by fitting the course of the wall to a rectangle or an oval (ellipse). Examples include:

Delft, Netherlands (See map alongside) 52°0′54″N 4°21′34″E / 52.01500°N 4.35944°E / 52.01500; 4.35944

The walled city of Delft was approximately rectangular.

The approximate length of rectangle was about 1.30 kilometres (0.81 mi).

The approximate width of the rectangle was about 0.75 kilometres (0.47 mi).

A perfect rectangle with these measurements has an area of 1.30×0.75 = 0.9 km

Lucca (Italy) 43°50′38″N 10°30′2″E / 43.84389°N 10.50056°E / 43.84389; 10.50056

The medieval city is roughly rectangular with rounded north-east and north-west corners.

The maximum distance from east to west is 1.36 kilometres (0.85 mi).

The maximum distance from north to south is 0.80 kilometres (0.50 mi).

A perfect rectangle of these dimensions would be 1.36×0.80 = 1.088 km.

Bruges (Belgium) 51°12′39″N 3°13′28″E / 51.21083°N 3.22444°E / 51.21083; 3.22444

The medieval city of Bruges, a major centre in Flanders, was roughly oval or elliptical in shape with the longer or semi-major axis running north and south.

The maximum distance from north to south (semi-major axis) is 2.53 kilometres (1.57 mi).

The maximum distance from east to west (semi-minor axis) is 1.81 kilometres (1.12 mi).

A perfect ellipse of these dimensions would be 2.53 × 1.81 × (π/4) = 3.597 km.

Chester United Kingdom 53°12′1″N 2°52′45″W / 53.20028°N 2.87917°W / 53.20028; -2.87917

Chester is one of the smaller English cities that has a near-intact city wall.

The distance from Northgate to Watergate is about 855 metres.

The distance from Eastgate to Westgate is about 589 metres.

A perfect rectangle of these dimensions would be (855/1000) × (589/1000) = 0.504 km.

Parks

Parks come in all sizes; a few are almost exactly one square kilometre in area. Here are some examples:

Riverside Country Park, UK.
Brierley Forest Park, UK.
Rio de Los Angeles State Park, California, US
Jones County Central Park, Iowa, US.
Kiest Park, Dallas, Texas, US
Hole-in-the-Wall Park & Campground, Grand Manan Island, Bay of Fundy, New Brunswick, Canada
Downing Provincial Park, British Columbia, Canada
Citadel Park, Poznan, Poland
Sydney Olympic Park, Sydney, Australia, contains 6.63 square kilometres of wetlands and waterways.

Golf courses

Using the figures published by golf course architects Crafter and Mogford, a course should have a fairway width of 120 metres and 40 metres clear beyond the hole. Assuming a 6,000-metre (6,600 yd) 18-hole course, an area of 80 hectares (0.8 square kilometre) needs to be allocated for the course itself. Examples of golf courses that are about one square kilometre include:

Manchester Golf Club, UK
Northop Country Park, Wales, UK
The Trophy Club, Lebanon, Indiana, US
Qingdao International Country Golf Course, Qingdao, Shandong, China
Arabian Ranches Golf Club, Dubai
Sharm el Sheikh Golf Courses: Sharm el Sheikh, South Sinai, Egypt
Belmont Golf Club, Lake Macquarie, NSW, Australia

Other areas of one square kilometre or thereabouts

The Old City of Jerusalem is almost 1 square kilometre in area.
Milton Science Park, Oxfordshire, UK.
Mielec Industrial Park, Mielec, Poland
The Guildford Campus of Guildford Grammar School, South Guildford, Western Australia
Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat, India
Île aux Cerfs Island, near the east coast of Mauritius.
Peng Chau Island, Hong Kong

Notes

Assume that each hole requires (6000÷18 + 40) = 373 metres in length. The area needed is (18 × 373 × 120 ÷ 10,000) = 80.64 ha (1 hectare = 10,000 square metres).

References

^ "UnitConversion.org Area Converter". web page. UnitConversion.org. 2009. Retrieved 4 July 2012.
There are 0.386102159 international square miles in a square kilometer while there are 0.386100614 US Survey square miles in the same measure. This is because the US Survey measures are very slightly larger than the international measures.
There are 247.105381467 international acres in a square kilometre while there are only 247.104393047 of the very slightly larger US Survey acres.
An International square mile equals 2.58998811 km while the slightly larger US Survey square mile equals 2.58999847 km.
1 acre (International) = 0.004046856 km while 1 acre (US Survey) = 0.004046873 km
^ Measurements taken from Google Earth
Howe, Steve. "Chester: A Virtual Stroll around the Walls". Retrieved 7 October 2012.
"Medway Council Riverside Country Park". web page. Medway Council. 2012. Archived from the original on 19 April 2012. Retrieved 9 June 2012.
"Ashfield Brierley Forest Park". web page. Ashfield District Council. 2012. Archived from the original on 8 November 2012. Retrieved 9 June 2012.
"California Department of Parks and Recreation Rio de Los Angeles State Park". web page. State of California. 2012. Retrieved 9 June 2012.
"Parks & Recreation Central Park, Center Junction, Iowa". web page. Jones County Tourism Association. Retrieved 9 June 2012.
"A History of Kiest Park". web page. Friends of Oak Cliff Parks. 2010. Archived from the original on 5 June 2012. Retrieved 9 June 2012.
"Hole-in-the-Wall Park & Campground". web page. Hole-in-the-Wall Park & Campground. 2012. Retrieved 9 June 2012.
"BC Parks Downing Provincial Park". web page. British Columbia Ministry of Environment. Retrieved 9 June 2012.
"Citadel Park". web page. Poland Travel. Retrieved 9 June 2012.
"Sydney Olympic Park Parklands Fact Sheet". web page. Sydney Olympic Park Authority. Retrieved 9 June 2012.
"Golf Course Safety" (PDF). Crafter + Mogford, golf course architects. Retrieved 5 October 2012.
^ "Visitor Information [Manchester Golf Club]". web page. Manchester Golf Club Ltd. Archived from the original on 25 May 2012. Retrieved 11 June 2012.
"Welcome to the Trophy Club". web page. The Trophy Club. Retrieved 11 June 2012.
"Arabian Ranches Golf Club". 7 Days in Dubai. Catchpole Communications FZ-LLC, Al Sidra Media LLC. Archived from the original on 2012-09-08. Retrieved 1 April 2018.
"Sharm el Sheikh Golf Courses: Sharm el Sheikh, South Sinai, Egypt". web page. TravelSmart Ltd: World Guides. Retrieved 11 June 2012.
"Belmont Golf Club, Lake Macquarie, History". web page. Belmont Golf Club. Retrieved 11 June 2012.
"Jerusalem - The Old City". web page. The American-Israeli Cooperative Enterprise. 2012. Retrieved 6 July 2012. Actually, about 89 hectares.
"Science Vale UK". web page. Abbey House. Retrieved 7 July 2012.
"Invest in Poland". web page. Polish information and foreign investment agency. Retrieved 7 July 2012.
"Guildford Grammar School". waterhall.com.au. Archived from the original on 10 April 2013. Retrieved 2 April 2018.
"39th National Conference on Fluid Mechanics and Fluid Power". web page. Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology (SVNIT). Archived from the original on 19 July 2012. Retrieved 7 July 2012.
"MauritiusAttraction". Amity Institute of Higher Education, Mauritius. Amity Institute of Higher Education. 2011. Archived from the original on 12 October 2013. Retrieved 27 June 2013.
"Peng Chau<Leisure Line - Barrier-Free Information Website - Hong Kong Federation of Handicapped Youth". e-cgo.org.hk.

Categories: