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"Cuiabá [River] joins the Paraguay River inside the Pantanal National Park, Pantanal, Brazil" -- Photo by Scott Warren -- Click through to learn of conservation efforts for the world's largest floodplain. Other photos of this confluence: www.macaulay.ac.u... and nationalparkorgen...

"Triple Frontier: The Tri-Border Between Argentina, Brazil and Paraguay" -- "...this in particular is formed naturally by the convergence of two rivers - the Paraná River and the Iguazu River." Click through to see the monuments in each country and the amazing Iguazu falls.

"Where the Rivers Collide: Park offers look at the confluence of Willamette, Columbia rivers -- Kelley Point Park [in Portland, OR] is the confluence of the Willamette and Columbia Rivers. / Thomas Patterson | Statesman Journal"

"Flooding at the confluence of two great rivers [the Mississippi and the Ohio at Cairo, Illinois]. Photo by John Blair Valley Watch [May 2, 2011]" -- Compare pinterest.com/... and pinterest.com/... for non-flooded photos.

"Easter Creek and Kilik River confluence -- Aerial of the Brooks Range mountains, arctic Alaska. Confluence of Easter Creek and Kilik River, Gates of the Arctic National Park." (With rainbow bonus!) Prints available at click-through; photo by Patrick J. Endres.

"Where Two Oceans meet" -- Conflict over where the Indian and Atlantic Oceans meet; officially, it's off Cape Agulhas, South Africa. Shown: "The RAF's Red Falcons jumped over Cape Agulhas - the small peninsula at the bottom of the photograph. The oceans don't respect any lines that are drawn by man..." Click through for more photos and explanations.

Confluence of the Yazoo River and the Mississippi, in Vicksburg, MS, where "Station" is the soon-to-be-open train museum.

Not a confluence, but still unmixed color shown here in "Green is the colour: Landmarks lit up to celebrate St Patrick's Day [2012]" -- Shown: "America: Workers spread an orange powder to dye the Chicago River green before the start of St. Patrick's Day Parade"

"Mixing of the clear Thompson River water with the muddy waters of the Fraser River at Lytton, B.C."

"Confluence of...Rio Uruguay & tributary, Misiones province, Argentina. Drastically cleared to make way for farming, the tropical rainforest of Argentina is now in some areas a less effective defense against erosion than it was in the past. The heavy rains in the province...wash the soil & carry off significant quantities of iron-rich earth into...Rio Uruguay, turning the waters a dark, reddish colour...this sediment is dumped in the estuary of...Rio de la Plata..." More at click-through.

"I Heart CONFLUENCE T Shirts" -- All right...it's not the same thing, but I needed a Valentine's graphic and it made me laugh!!

"Where the Rivers Meet [on the way to Kamloops, British Columbia]: The Thompson River...is the largest tributary of the Fraser River drainage system... The two major tributaries of the Thompson River, the North and South Thompson Rivers, are very different rivers! From spring to early fall, the North Thompson River is a cold and an opaque grey colour, while the South Thompson is warmer and a clear blue-green colour."

"Exploring the Gold Rush Trail - Lytton, British Columbia," Photo by Tourism BC, via Flickr. -- "Lytton, British Columbia, Canada sits at the confluence of the Fraser and Thompson Rivers. (The Thompson is the darker blue river in the image, the Fraser, the lighter grey colour)" -- Nice historical information at the click-through. [See also pinterest.com/...]

"The Amazon of Europe: A rich natural and cultural heritage is combined in one of the most beautiful and valuable wetland areas of Europe: spanning Austria, Croatia, Hungary, Serbia and Slovenia, the lower courses of the Drava and Mura Rivers and related sections of the Danube River were recently declared a Transboundary UNESCO Biosphere Reserve by all five countries. With more than 800,000 hectares the site will be Europe's largest river protection area."

Another look at Osijek, Croatia and the confluence of the Drava and Danube Rivers. [See also pinterest.com/...]

"Confluence of the Drava and Danube Rivers near Osijek, Croatia -- Located on the right bank of the river Drava 25 km upstream of its confluence with the Danube is the city of Osijek, Croatia." [See also pinterest.com/...]

A third view of the "Confluence of the Alaknanda and Bhagirathi Rivers in Devprayag, India" -- "Devprayag is...one of the Panch Prayag (five confluences) of Alaknanda River & it is where the Ganges River is formed." More about the glacial sources at the click-through.

"Confluence of the Thompson and Fraser Rivers in Lytton, BC, Canada. The Thompson River ends here in Lytton, British Columbia, Canada where it meets the Fraser River. The contrast is striking as the clear Thompson River water joins with the muddy Fraser." [See also pinterest.com/...]

"Indian devotees dressed as Santa Claus pray at Sangam, confluence of three rivers, the Ganga, the Yamuna and mythical Saraswati on the eve of Christmas festival in Allahabad, India. Picture: AP"

"The Clementine Trail is a pretty four mile jaunt from the Confluence of the North and Middle Forks of the American River upstream to the Clementine Dam and back. The Confluence is about two miles below Auburn, California, down in the American River Canyon. It is a popular spot for picnics and swimming, but you have to be...careful, especially in the Middle Fork. That part of the American is cold and dangerous. The North Fork, at least down here at the Confluence, is mild and happy..."

Charleston -- "Located on a peninsula between the confluence of the Cooper and Ashley Rivers, the city was the first English settlement in South Carolina."

"Havasu Creek confluence at Colorado River - Grand Canyon," by Al_HikesAZ, via Flickr

"Steyr," by twiga_swala, via Flickr -- Confluence of rivers Steyr and Enns in Steyr, Austria

"Idyllic confluence of Enns and Steyr [Steyr, Austria] in winter"

"Confluence," by aivo2010, via Flickr -- Rough translation: At the small town of Bever, [Switzerland], the confluence of the Flaz River, at left, with its blue-whitish water originating in the Bernina mountains, and the blue-water Inn River, at right, without much glacial afflux. The Flaz appears to be the larger river, but hereafter, both become the Inn River.