Underwater rivers are formed when the fresh top water meets the exposed salty groundwater. The different density levels in the two waters causes them to layer. Undersea rivers are similar to the rivers we see on land. They have banks on either side, They carve valleys into the sea floor and follow meandering paths. These rivers were unknown until the 1980s, when sonar mapping of the seafloor began to reveal them.
Angelita in Yucatan, Mexico, looks like any ordinary swimming hole. It’s not until you dive almost 100 feet that the underwater river becomes exposed.
Continue reading Underwater river flowing under the ocean in Mexico
Incredible examples of art in nature.
Rainforest Expedition’s Troy Alexander spotted the bizarre maypole-in-miniature in the Southern Peruvian Amazon. Alexander posted a photograph of his discovery to /r/whatsthisbug, a subreddit devoted to identifying insects and their handiwork.
Continue reading Mind Blowing Cocoons in Rainforest
Multnomah Falls is located on Multnomah Creek in Oregon, US. Spanning two tiers on basalt cliffs, it is the tallest waterfall in the state of Oregon at 620 ft (189 m) in height. The falls drops in two major steps, split into an upper falls and a lower falls. The two drops are due to a zone of more easily eroded basalt at the base of the upper falls. Underground springs from Larch Mountain are the year-round source of water for the waterfall, augmented by spring runoff from the mountain’s snowpack and rainwater during the other seasons. According to legend from the Multnomah tribe (from whom the falls take their name), the waterfall was formed after a young woman sacrificed herself to the Great Spirit to save Multnomah village from a plague by jumping from the cliff. After her death, water began to flow from above the cliff, creating the waterfall. Multnomah Falls is the most visited natural recreation site in the Pacific Northwest with more than 2 million stopping by each year.
By Another Believer – Own work, CC BY-SA 3.0, Link
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The Sargasso Sea is a region of the North Atlantic Ocean bounded by four currents that swirl around the Bermuda forming a vast whirlpool called the North Atlantic gyre. Unlike all other regions called seas, it has no land boundaries. It is distinguished from other parts of the Atlantic Ocean by its characteristic brown Sargassum seaweed and often calm blue water. The sargassum originates in the nutrient-rich zones close to the coast of the Americas, particularly in the Gulf of Mexico. All of the currents deposit the marine plants which they are carrying into this sea, yet the ocean water in the Sargasso Sea is distinctive for its deep blue color and exceptional clarity. It is also a body of water that has captured the public imagination, and so is seen in a wide variety of literary and artistic works and in popular culture. The Sargasso Sea is frequently (but erroneously) depicted in fiction as a dangerous area where ships are mired in weed for centuries, unable to escape.
Continue reading Sargasso Sea: The only sea without a land boundary
Romer is a land-locked freshwater fjord at the northern end of King Frederick VIII Land, near Greenland’s northeastern coast. The Lake is famous for its impressive Elephant Foot Glacier, a wide piedmont glacier with a strikingly shaped 5.4 kilometers (3 mi) wide terminal lobe flowing into the lake from the SE in its central part.
By Hedwig Storch – Own work, CC BY-SA 3.0, Link
Continue reading Elephant Foot Glacier
Hamilton Pool Preserve is a natural pool that was created when the dome of an underground river collapsed due to massive erosion thousands of years ago. The pool is located about 23 miles (37 km) west of Austin, Texas. The pool is surrounded by large slabs of limestone that rest by the water’s edge. Large stalactites grow from the ceiling high above. The ceiling and surrounding cliffs of the grotto are home to moss, maidenhair fern and cliff swallows. The Ashe juniper (cedar) uplands of the preserve are home to the endangered golden-cheeked warbler.
info source: wikipedia
By Trey Perry – http://perrygraph.com/collections/austin/products/hamilton-pool, CC BY 3.0, Link
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Maly Semyachik is a stratovolcano located in the eastern part of Kamchatka Peninsula, Russia. A hot, acidic crater lake fills the historically active Troitsky Crater, which formed during a large explosive eruption about 400 years ago. The water in the lake has an unusual bright turquoise color. It’s because the waters of the lake are poisonous due to the content of several types of acids and other chemical compounds.The water in the lake never freezes, even when everything is covered with a layer of ice and deep snow.
info source: wikipedia
By zarmel http://www.geodiversite.net/auteur2 – http://www.geodiversite.net/media191, CC BY-SA 3.0, Link
Continue reading Maly Semyachik: a volcano with a turquoise crater lake
Victoria Falls is a waterfall in southern Africa on the Zambezi River at the border between Zambia and Zimbabwe. David Livingstone, the Scottish missionary and explorer, is believed to have been the first European to view Victoria Falls in 1855. Livingstone named his sighting in honour of Queen Victoria of Britain, but the indigenous Lozi language name, Mosi-oa-Tunya—”The Smoke That Thunders” continues in common usage as well. While it is neither the highest nor the widest waterfall in the world, Victoria Falls is classified as the largest, based on its combined width of 1,708 meters and height of 108 meters resulting in the world’s largest sheet of falling water. Victoria Falls is roughly twice the height of North America’s Niagara Falls and well over twice the width of its Horseshoe Falls. There are two islands on the crest of the falls that are large enough to divide the curtain of water even at full flood: Boaruka Island (or Cataract Island) near the western bank, and Livingstone Island near the middle—the point from which Livingstone first viewed the falls.
Continue reading The Impressive Victoria Falls
By Christopher Michel – The Narrows., CC BY 2.0, Link
The Narrows is the narrowest section of Zion Canyon in Zion National Park, Utah. Situated on the North Fork of the Virgin River and upstream of the main canyon, The Narrows is one of the premier hikes in the park and on the Colorado Plateau. The Narrows refers to both the 3.6-mile (5.8 km) bottom-up hike from the Temple of Sinawava to Big Springs, as well as the 16-mile (26 km) top-down hike from Chamberlain’s Ranch back to the Temple of Sinawava.
info source: wikipedia
Continue reading The Narrows – Zion National Park
Jiuzhaigo is a nature reserve and national park located in the north of Sichuan Province in the southwestern region of China. The Jiuzhaigou valley is part of the Min Mountains on the edge of the Tibetan Plateau and stretches over 72,000 hectares. It is known for its many multi-level waterfalls, colorful lakes, and snow-capped peaks.
By Charlie fong – 个人, Public Domain, Link
Continue reading The gems of Jiuzhaigou National Park