Editing Iguazu Falls

{{Short description|Waterfalls on the Iguazú River on the border of Argentina and Brazil}}
{{Use dmy dates|date=July 2021}}
{{Infobox waterfall
| name           = Iguazú Falls
| image          = Iguazu Cataratas2.jpg
| image_size     = 300px
| caption        = 
| location       = {{Flag|Argentina}}, [[Misiones Province|Misiones]]<br />{{Flag|Brazil}}, [[Paraná (state)|Paraná]]
| coords         = {{coord|25|41|12|S|54|26|41|W|type:waterbody_region:BR_dim:5000|display=inline,title}}
| watercourse    = [[Iguazu River]]
| height_longest = {{convert|82|m|ft|0}}<ref name="Britannica"/>
| average_width  = 
| number_drops   = 275<ref name="Britannica"/>
| average_flow   = {{convert|1756|m3/s|cuft/s|-1|abbr=on}}<ref name="Britannica"/>
| map            = South America#Brazil#Argentina
| map_caption    = 
| mapframe-zoom = 9
}}

'''Iguazú Falls''' or '''Iguaçu Falls''' ({{langx|gn|Chororõ Yguasu}} {{IPA|gn|ɕoɾo'ɾõ ɨɣʷa'su|}}, {{langx|es|Cataratas del Iguazú|links=no}} {{IPA|es|kataˈɾatas ðel iɣwaˈsu|}}; {{langx|pt|Cataratas do Iguaçu}} {{IPA|pt|kɐtɐˈɾatɐz du iɡwɐˈsu|}}) are [[waterfall]]s of the [[Iguazu River]] on the [[Argentina–Brazil border|border]] of the [[Provinces of Argentina|Argentine province]] of [[Misiones Province|Misiones]] and the [[Federative units of Brazil|Brazilian state]] of [[Paraná (state)|Paraná]]. Together, they make up the largest waterfall system in the world.<ref>{{citation |first= Dominic |last= Couzens|url=https://books.google.com/books?id=gJVLXG-LOcMC&pg=PA228|title=Top 100 Birding Sites of the World|date=2008|publisher=University of California Press|isbn=978-0-52-025932-4|page=228}}</ref> The falls divide the river into the upper and lower Iguazu. The Iguazu River rises near the heart of the city of [[Curitiba]]. For most of its course, the river flows through Brazil; however, most of the falls are on the Argentine side. Below its confluence with the San Antonio River, the Iguazu River forms the border between Argentina and Brazil.

The name ''Iguazú'' comes from the [[Guarani language|Guarani]] or [[Old Tupi|Tupi]] words "''y''" {{IPA|gn|ɨ|}}, meaning "water", and "''ûasú''" {{IPA|gn|waˈsu|}}, meaning "big".<ref name="SATravel">{{cite web|url= http://gosouthamerica.about.com/cs/southamerica/a/IguazuFalls.htm|title= Iguazu Falls|first= Bonnie|last= Hamre|work= About.com Travel|access-date= 11 January 2008|archive-date= 3 January 2016|archive-url= https://web.archive.org/web/20160103185321/http://gosouthamerica.about.com/cs/southamerica/a/IguazuFalls.htm|url-status= dead}}</ref> Legend has it that a [[deity]] planned to marry a beautiful woman named Naipí, who fled with her mortal lover Tarobá in a canoe. In a rage, the deity sliced the river, creating the waterfalls and condemning the lovers to an eternal fall.<ref name=SATravel/> The first European to record the existence of the falls was the Spanish [[Conquistador]] [[Álvar Núñez Cabeza de Vaca]] in 1541. It was inscribed into the [[UNESCO World Heritage List]] in 2013.

==Geology and geography==
[[File:Iguazu_National_Park_Falls.jpg|thumb|left|The falls on the Argentine side in the [[Iguazú National Park]].]]
The [[staircase]] character of the falls consists of a two-step waterfall formed by three layers of [[flood basalt|basalt]]. The steps are {{Convert|35 and 40|m||abbr=}} in height. The [[columnar basalt]] rock sequences are part of the {{Convert|1000|m||-thick|abbr=|adj=mid}} [[Serra Geral]] formation within the [[Paleozoic]]-[[Mesozoic]] Paraná [[Sedimentary basin|Basin]].  The tops of these sequences are characterized by {{Convert|8-10|m||abbr=on}} of [[geological resistance|highly resistant]] [[vesicular texture|vesicular]] basalt and the contact between these layers controls the shape of the falls. [[Headward erosion|Headwater erosion]] rates are estimated at {{Convert|1.4-2.1|cm/year||abbr=on}}.<ref name="Piotr">{{cite book|last1=Stevaux|first1=Jose|last2=Latrubesse|first2=Edgardo|editor1-last=Migon|editor1-first=Piotr|title=Iguazu Falls: A History of Differential Fluvial Incision, in Geomorphological Landscapes of the World|date=2010|publisher=Springer|isbn=9789048130542|pages=101–109}}</ref><ref name="Britannica">{{cite encyclopedia |year= 2011 |title= Iguaçu Falls |encyclopedia= [[Encyclopædia Britannica]] |edition= Encyclopædia Britannica Online Library |url= http://www.library.eb.com/eb/article-9042070 |access-date= 15 April 2011}}</ref> Numerous islands along the {{convert|2.7|km|mi|adj=mid|-long}} edge divide the falls into many separate waterfalls and cataracts, varying between {{convert|60|and|82|m|ft|0|abbr=on}} high. The number of these smaller waterfalls fluctuates from 150 to 300, depending on the water level. About half of the river's flow falls into a long and narrow chasm called the Devil's Throat ({{lang|es|Garganta del Diablo}} in Spanish or {{lang|pt|Garganta do Diabo}} in Portuguese).<ref name="Britannica" />

The Devil's Throat canyon is {{Convert|80–90|m||abbr=on}} wide and {{Convert|70-80|m||abbr=on}} deep. Left of this canyon, another part of the river forms 160–200 individual falls, which merge into a single front during the flood stage. The largest falls are named San Martín, Adam and Eva, Penoni, and Bergano.<ref name=Piotr/>

About {{convert|900|m|ft|-1|abbr=on}} of the {{convert|2.7|km|mi|adj=on|abbr=on}} length does not have water flowing over it. The water of the lower Iguazu collects in a canyon that drains into the [[Paraná River]], a short distance downstream from the [[Itaipu Dam]]. The junction of the water flows marks the border between Brazil, Argentina, and Paraguay. Some points in the cities of [[Foz do Iguaçu]], Brazil, [[Puerto Iguazú]], Argentina, and [[Ciudad del Este]], Paraguay, have access to the Iguazu River, where the borders of all three nations may be seen, a popular tourist attraction for visitors to the three cities.

The Iguazu Falls are arranged in a way that resembles a reversed letter "J". The Argentina–Brazil border runs through the Devil's Throat. On the right bank is the Brazilian territory, which is home to more than 95% of the Iguazu River basin but has just over 20% of the jumps of these falls, and the left side jumps are Argentine, which make up almost 80% of the falls.

==Tourism==
[[Aerolíneas Argentinas]]<ref>{{cite web|title=Travel to Puerto Iguazu|url=https://www.latam.com/en_us/flights-destinations/get-inspired/argentina/puerto-iguazu/|website=LATAM|access-date=19 January 2017|language=en}}</ref> has direct flights from [[Buenos Aires]] to [[Cataratas del Iguazú International Airport|Iguazu International Airport.]] [[Azul Brazilian Airlines|Azul]], [[Gol Transportes Aéreos|GOL]], and [[LATAM Brasil]]<ref>{{cite web|title=Travel to Foz Do Iguaçu|url=https://www.latam.com/en_us/flights-destinations/get-inspired/brazil/foz-do-iguacu/|website=LATAM|access-date=19 January 2017|language=en}}</ref> offer services from main Brazilian cities to Foz do Iguaçu.

==Access==
[[File:Parque Nacional do Iguaçú - Iguaçu National Park - Bilheterias - Ticket toll (13932942577).jpg|thumb|[[Box office|Ticket office]] – [[Iguaçu National Park]], Brazil|200x200px]]
The falls may be reached from two main towns, with one on either side of the falls: Foz do Iguaçu in Brazil and Puerto Iguazú in Argentina, as well as from Ciudad del Este, Paraguay, on the other side of the Paraná River from Foz do Iguaçu, each of those three cities having commercial airports. The falls are shared by the [[Iguazú National Park]] (Argentina) and [[Iguaçu National Park]] (Brazil). The two parks were designated [[UNESCO World Heritage Site]]s in 1984 and 1986, respectively.<ref>{{cite web| url =https://whc.unesco.org/en/list/303|title=Iguazu National Park| publisher= UNESCO World Heritage Centre |work= unesco.org}}</ref><ref>{{cite web|url=https://whc.unesco.org/en/list/355|title=Iguaçu National Park| publisher= UNESCO World Heritage Centre|work=unesco.org}}</ref>

The first proposal for a Brazilian national park aimed at providing a pristine environment to "future generations", just as "it had been created by God" and endowed with "all possible preservation, from the beautiful to the sublime, from the picturesque to the awesome" and "an unmatched flora" located in the "magnificent Iguaçu waterfalls". These were the words used by [[André Rebouças]], an engineer, in his book ''Provinces of Paraná, Railways to Mato Grosso and Bolivia'', which started up the campaign aimed at preserving the Iguaçu Falls in 1876. At this time, [[Yellowstone National Park]] in the US, the first national park in the world, was four years old.

On the Brazilian side, a walkway along the canyon has an extension to the lower base of Devil's Throat. Helicopter rides offering aerial views of the falls have been available from Brazil, but Argentina has prohibited such helicopter tours because of the adverse environmental impact on the flora and fauna of the falls.{{cn|date=September 2024}} From Foz do Iguaçu airport, the park may be reached by taking a taxi or bus to the entrance of the park. Their park has an entrance fee on both sides. Once inside, free and frequent buses are provided to various points within the park. The town of Foz do Iguaçu is about {{convert|20|km|mi|0|abbr=on}} away, and the airport is between the park and the town.

The Argentine access, across the forest, is by a [[Rainforest Ecological Train]] very similar to the one in [[Disney's Animal Kingdom]].<ref>{{Cite web|date=2013-08-15|title=Meet The Ecological Jungle Train Iguazu Falls|url=https://sayhueque.com/blog/article/ride-the-iguazu-ecological-jungle-train/|access-date=2021-12-21|website=Say Hueque|language=en-US}}</ref> The train brings visitors to the entrance of Devil's Throat, as well as the upper and lower trails. The ''Paseo Garganta del Diablo'' is a {{convert|1|km|mi|adj=mid|-long|1|abbr=on}} trail that brings visitors directly over the falls of Devil's Throat, the highest and deepest of the falls. Other walkways allow access to the elongated stretch of falls across the forest on the Argentine side and to the boats that connect to San Martin Island. Also on the Argentine side, inflatable boat services take visitors very close to the falls.

The Brazilian transportation system aims at allowing an increase in the number of visitors, while reducing the adverse environmental impact, through an increase in the average number of passengers per vehicle inside the park.{{citation needed|date=March 2012}} The new transportation system has a 72-passenger capacity and panoramic-view, double-deck buses.

{{wide image|Iguazu Décembre 2007 - Panorama 7.jpg|800px|align-cap=center|A walkway allows a panoramic view of the falls from the Brazilian side.}}

==Comparisons to other notable falls==
[[File:Cataratas Iguazu vista general.JPG|thumb|View of the Iguazú falls from the viewpoint that is in the lower circuit.]]
[[File:CATARATAS DEL IGUAZU. GARGANTA DEL DIABLO.jpg|thumb|Iguazu Falls in July 2018.]]
{{See also|List of waterfalls by flow rate|Victoria Falls#Statistics}}
Upon seeing Iguazu, the United States First Lady [[Eleanor Roosevelt]] reportedly exclaimed, "Poor [[Niagara Falls|Niagara]]!"<ref name=SATravel/> (which, at 50 m or 165 feet, are a third shorter). Often, Iguazu also is compared with [[Victoria Falls, Zambia|Victoria Falls]] in Southern Africa, which separates [[Zambia]] and [[Zimbabwe]]. Iguazu is wider but is split into roughly 275 distinct falls and large islands, whereas Victoria has the largest curtain of water in the world, at more than {{convert|1600|m|0|abbr=on}} wide and over {{convert|100|m|0|abbr=on}} in height (in low flow, Victoria is split into five by islands but in high flow, it may be uninterrupted). The only wider falls are extremely large rapid-like falls, such as the [[Boyoma Falls]] (Stanley Falls).

With the flooding of the [[Guaíra Falls]] in 1982, Iguazu currently has the [[List of waterfalls by flow rate|sixth-greatest average annual flow]] of any waterfall in the world, following number five Niagara, with an average rate of {{convert|1746|m3/s|cuft/s|-1|abbr=on}}. Its maximum recorded flow was {{convert|45700|m3/s|cuft/s|-3|abbr=on}} on 9 June 2014.<!--source's numbers in m3/s properly rounded based on cfs rounding; clearly source converted to m3/s but did not properly round to significant digits--><ref name="maxflux2">{{cite web|url = http://g1.globo.com/pr/oeste-sudoeste/noticia/2014/06/chuvas-fazem-vazao-das-cataratas-bater-recorde-e-itaipu-abrir-vertedouro.html|title = Chuvas fazem vazão das Cataratas bater recorde e Itaipu abrir vertedouro|date = 9 June 2014|access-date = 11 June 2014|author = Fabiula Wurmeister|publisher = globo.com notícias}}</ref><ref name="maxflux1">{{cite web|url = http://www.cataratasdoiguacu.com.br/portal/paginas/430-dia-historico-nas-cataratas-do-iguacu.aspx|title = Dia histórico nas Cataratas do Iguaçu|date = 10 June 2014|access-date = 11 June 2014|publisher = Cataratas do Iguaçu S.A.|archive-date = 24 August 2017|archive-url = https://web.archive.org/web/20170824222647/http://www.cataratasdoiguacu.com.br/portal/paginas/430-dia-historico-nas-cataratas-do-iguacu.aspx|url-status = dead}}</ref> By comparison, the average flow of Niagara Falls is {{convert|2400|m3/s|cuft/s|-3|abbr=on}}, with a maximum recorded flow of {{convert|8300|m3/s|cuft/s|-3|abbr=on}}.<!--properly rounded as above--><ref name="wwd-niagara">{{cite web |title= Niagara Falls |publisher= World Waterfall Database |url= http://www.world-waterfalls.com/waterfall.php?num=142 |access-date= 2 December 2010 |archive-url= https://web.archive.org/web/20101201115458/http://world-waterfalls.com/waterfall.php?num=142 |archive-date= 1 December 2010 |url-status= dead }}</ref> The average flow at Victoria Falls is {{convert|1088|m3/s|cuft/s|-1|abbr=on}}, with a maximum recorded flow of {{convert|7100|m3/s|cuft/s|-4|abbr=on}}.<!--properly rounded as above--><ref name="wwd-victoria">{{cite web |title= Victoria Falls |publisher= World Waterfall Database |url= http://www.world-waterfalls.com/waterfall.php?num=147 |access-date= 2 December 2010 |archive-url= https://web.archive.org/web/20101201102227/http://world-waterfalls.com/waterfall.php?num=147 |archive-date= 1 December 2010 |url-status= dead }}</ref>
{| class="wikitable" style="margin: 1em 0 1em 1em;"
|+ Size and flow rate of Victoria Falls with Niagara Falls and Iguazu for comparison
|-
! Parameters
! [[Victoria Falls]]
! [[Niagara Falls]]
! Iguazu Falls
|-
| Height<ref name="WW">{{Cite web |url=http://www.world-waterfalls.com/index.php |title=World Waterfall Database: World's Tallest Waterfalls |access-date=11 March 2007 |archive-url=https://web.archive.org/web/20070714073724/http://www.world-waterfalls.com/index.php |archive-date=14 July 2007 |url-status=bot: unknown  }}</ref>
| {{convert|108|m|ft|abbr=on}}
| {{convert|51|m|ft|abbr=on}}
| {{convert|64|-|82|m|ft|abbr=on}}
|-
| Width<ref Name="WW"/>
| {{convert|1,708|m|ft|abbr=on}}
| {{convert|1,203|m|ft|abbr=on}}
| {{convert|2,700|m|ft|abbr=on}}
|-
! Flow rate units (vol/s)
! m<sup>3</sup>/s (cu ft/s)
! m<sup>3</sup>/s (cu ft/s)
! m<sup>3</sup>/s (cu ft/s)
|-
| Mean annual flow<ref Name="WW"/>
| {{convert|1,088|m3|cuft|abbr=on}}
| {{convert|2,407|m3|cuft|abbr=on}}
| {{convert|1,746|m3|cuft|abbr=on}}
|-
| Highest recorded flow<ref Name="WW"/>
| {{convert|12,800|m3|cuft|abbr=on}}
| {{convert|6,800|m3|cuft|abbr=on}}
| {{convert|45,700|m3|cuft|abbr=on}}
|- bgcolor="white" font="8pt"
| colspan="100%" |''Notes: See references for explanation of measurements.<br/>For water, cubic metres per second = tonnes per second.<br/>Half the water approaching Niagara is diverted for hydroelectric power.<br/>Iguazu has two drops; height is given for the biggest drop and total height.<br/>10 falls have greater or equal flow rates, but are not as high as Iguazu and Victoria Falls.<ref name="WCD">[http://www.dams.org/docs/kbase/studies/cszzanx.pdf World Commission on Dams website:] {{webarchive|url=https://web.archive.org/web/20060721034408/http://www.dams.org/docs/kbase/studies/cszzanx.pdf |date=21 July 2006 }} "Case Study – Kariba Dam-Zambezi River Basin" Annex 13 & 14 Victoria Falls Mean Monthly Flows. Website accessed 1 March 2007. This website gives mean monthly flow rates in cubic metres per second (i.e., the total volume of water passing in each calendar month divided by the number of seconds in the month), the standard measure used in hydrology to indicate seasonal variation in flow.</ref>''
|}

{{wide image|File:Iguazu Décembre 2007 - Panorama 1.jpg|1000px|align-cap=center|Some of the falls on the Argentine side of the Iguazu Falls, seen from the Brazilian shore.}}

==Climate==
[[File:Iguazu Falls Brazilian Side 2019.jpg|thumb|400px|Iguazu Falls Brazilian Side 2019]]
The Iguazu Falls experience a [[humid subtropical climate]] (''Cfa'', according to the [[Köppen climate classification]]) with abundant precipitation and high temperatures year-round. During the summer of 2006, a severe drought caused the Iguazu River to become diminished, reducing the amount of water flowing over the falls to {{convert|300|m3/s|cuft/s}} until early December. This was unusual, as dry periods normally last only a few weeks.<ref name="Kerala">{{cite web|url=http://keralaarticles.blogspot.com/2007/11/iguazu-falls.html|title=The Kerala Articles|work=keralaarticles.blogspot.com|date=6 November 2007 }}</ref> The period with the greatest volume of water flowing over the falls is usually December to February, coinciding with one of the periods of greatest rainfall.
{{Weather box|location = Iguazu Falls (Foz do Iguacu), Brazil
|metric first = yes
|single line = yes
|collapsed = yes
|Jan record high C = 40.0
|Feb record high C = 40.0
|Mar record high C = 38.8
|Apr record high C = 36.8
|May record high C = 36.0
|Jun record high C = 32.0
|Jul record high C = 31.3
|Aug record high C = 35.0
|Sep record high C = 36.8
|Oct record high C = 39.0
|Nov record high C = 38.6
|Dec record high C = 39.4
|year record high C = 40.0
|Jan high C = 33.0
|Feb high C = 32.6
|Mar high C = 31.1
|Apr high C = 28.2
|May high C = 25.2
|Jun high C = 23.1
|Jul high C = 23.7
|Aug high C = 25.3
|Sep high C = 26.9
|Oct high C = 28.8
|Nov high C = 31.0
|Dec high C = 32.6
|year high C = 28.5
|Jan mean C = 25.5
|Feb mean C = 25.4
|Mar mean C = 23.8
|Apr mean C = 20.8
|May mean C = 17.7
|Jun mean C = 15.8
|Jul mean C = 15.7
|Aug mean C = 17.5
|Sep mean C = 19.0
|Oct mean C = 21.4
|Nov mean C = 23.1
|Dec mean C = 25.1
|year mean C = 20.9
|Jan low C = 19.6
|Feb low C = 20.0
|Mar low C = 18.4
|Apr low C = 15.4
|May low C = 12.2
|Jun low C = 10.4
|Jul low C = 9.7
|Aug low C = 11.3
|Sep low C = 13.5
|Oct low C = 15.3
|Nov low C = 16.5
|Dec low C = 18.6
|year low C = 15.1
|Jan record low C = 9.2
|Feb record low C = 6.8
|Mar record low C = 5.2
|Apr record low C = 3.0
|May record low C = -1.0
|Jun record low C = -3.1
|Jul record low C = -4.2
|Aug record low C = 0.0
|Sep record low C = 1.0
|Oct record low C = 5.0
|Nov record low C = 6.3
|Dec record low C = 3.8
|year record low C = -4.2
|precipitation colour = green
|Jan precipitation mm = 196.0
|Feb precipitation mm = 180.1
|Mar precipitation mm = 174.8
|Apr precipitation mm = 151.0
|May precipitation mm = 127.6
|Jun precipitation mm = 138.3
|Jul precipitation mm = 84.4
|Aug precipitation mm = 107.4
|Sep precipitation mm = 146.6
|Oct precipitation mm = 219.8
|Nov precipitation mm = 153.7
|Dec precipitation mm = 189.0
|year precipitation mm = 1868.7
|unit precipitation days = 1.0 mm
|Jan precipitation days = 9
|Feb precipitation days = 9
|Mar precipitation days = 8
|Apr precipitation days = 8
|May precipitation days = 6
|Jun precipitation days = 8
|Jul precipitation days = 6
|Aug precipitation days = 8
|Sep precipitation days = 8
|Oct precipitation days = 9
|Nov precipitation days = 7
|Dec precipitation days = 9
|year precipitation days = 95
|Jan humidity = 77
|Feb humidity = 80
|Mar humidity = 82
|Apr humidity = 85
|May humidity = 86
|Jun humidity = 85
|Jul humidity = 83
|Aug humidity = 80
|Sep humidity = 79
|Oct humidity = 78
|Nov humidity = 75
|Dec humidity = 74
|year humidity = 80.3
|Jan sun = 230.5
|Feb sun = 196.3
|Mar sun = 209.9
|Apr sun = 193.6
|May sun = 180.8
|Jun sun = 151.2
|Jul sun = 168.7
|Aug sun = 157.9
|Sep sun = 146.4
|Oct sun = 195.6
|Nov sun = 231.4
|Dec sun = 232.3
|year sun = 2294.6
|source 1 = INMET<ref name="INMET">{{cite web
| url = http://www.inmet.gov.br/portal/index.php?r=clima/normaisClimatologicas
| title = NORMAIS CLIMATOLÓGICAS DO BRASIL 1961–1990
| access-date = 22 September 2014
| publisher = Instituto Nacional de Meteorologia
| language = pt}}</ref>
|date=November 2011}}

==Popular culture==
[[File:Antônio Parreiras - Cataratas do Iguaçu.jpg|thumb|right|The waterfalls in a 1920 painting by [[Antônio Parreiras]]]]
Iguazu Falls has been featured in several TV shows and films,<ref>{{cite web|url=https://www.imdb.com/search/title?locations=%20Foz%20do%20Igua%E7u,%20Paran%E1,%20Brazil |title= Most Popular Titles With Location Matching 'Foz do Iguaçu, Paraná, Brazil' |access-date=30 October 2010| website= IMDb.com}}</ref> including:

{{columns-list|colwidth=30em|
*''[[Tarzan (1966 TV series)|Tarzan]]'' (1966–1968)
*''[[Moonraker (film)|Moonraker]]'' (1979)
*''[[The Mission (1986 film)|The Mission]]'' (1986)
*''[[Baraka (film)|Baraka]]'' (1992)
*''[[Extermineitors IV: Como hermanos gemelos]]'' (1992)
*''[[Happy Together (1997 film)|Happy Together]]'' (1997)
*''[[Mr. Magoo (film)|Mr. Magoo]]'' (1997)
*''[[Indiana Jones and the Kingdom of the Crystal Skull]]'' (2008)
*''[[Soarin'|Soarin' Around the World]]'' (2016)
}}

==See also==
*[[List of waterfalls]]
*[[List of waterfalls by flow rate]]

==References==
{{Reflist|30em}}

==External links==
{{sister project links|voy=Iguaçu Falls|display=Iguaçu Falls|auto=1}}
*[https://web.archive.org/web/20120625065838/http://www4.icmbio.gov.br/parna_iguacu/ Foz do Iguaçu]; Brazilian government site (archived; in Portuguese)
*[https://www.copel.com/mhbweb/paginas/bacia-iguacu.jsf Copel Monitoramento Hydrológico] (Iguazu River flow rate measurements; leftmost green dot gives flow rate at Hotel Cataratas)
*[https://whc.unesco.org/en/list/303 Iguazu Falls] at UNESCO World Heritage Centre 
*[https://www.beautifulworld.com/south-america/argentina/iguazu-falls/ Iguazu Falls facts] at BeautifulWorld.com
*{{wwdb name |name in url=Iguazu-Cataratas-del |id=109}}
*[https://vimeo.com/44873371 Aerial video] at vimeo.com

{{New7Wonders of Nature}}
{{Authority control}}

{{DEFAULTSORT:Iguazu Falls}}
[[Category:Waterfalls of Argentina]]
[[Category:Waterfalls of Brazil]]
[[Category:International waterfalls]]
[[Category:Argentina–Brazil border]]
[[Category:Landforms of Misiones Province]]
[[Category:Landforms of Paraná (state)]]
[[Category:Block waterfalls]]
[[Category:Segmented waterfalls]]
[[Category:Environment of Paraná (state)]]
[[Category:Foz do Iguaçu]]
[[Category:Articles containing video clips]]
[[Category:Tourist attractions in Misiones Province]]
[[Category:Tourist attractions in Paraná (state)]]
[[Category:World Heritage Sites in Argentina]]
[[Category:World Heritage Sites in Brazil]]
[[Category:First 100 IUGS Geological Heritage Sites]]