Badwater Basin is an endorheic basin in Death Valley National Park, Death Valley, Inyo County, California, noted as the lowest point in North America, with an elevation of 282 ft (86 m) below sea level. Mount Whitney, the highest point in the contiguous 48 states, is only 84.6 miles (136 km) to the WNW. The site itself consists of a small spring-fed pool of "bad water" next to the road in a sink; the accumulated salts of the surrounding basin make it undrinkable, thus giving it the name. The pool does have animal and plant life, including pickleweed, aquatic insects, and the Badwater snail. Adjacent to the pool, where water is not always present at the surface, repeated freeze–thaw and evaporation cycles gradually push the thin salt crust into hexagonal honeycomb shapes. The pool itself is not actually the lowest point of the basin: the lowest point (which is only slightly lower) is several miles to the west and varies in position. However, the salt flats are hazardous to traverse (in many cases being only a thin white crust over mud), and so the sign is at the pool. The basin was considered the lowest elevation in the Western Hemisphere until the discovery of Laguna del Carbón in Argentina at −344 ft (−105 m). At Badwater, significant rainstorms flood the valley bottom periodically, covering the salt pan with a thin sheet of standing water. Each newly-formed lake does not last long though, because the 1.9 in (48 mm) of average rainfall is overwhelmed by a 150 in (3,800 mm) annual evaporation rate. This, the United States' greatest evaporation potential, means that even a 12-foot-deep, 30-mile-long lake would dry up in a single year. While the basin is flooded, some of the salt is dissolved; it is redeposited as clean crystals when the water evaporates. A popular site for tourists is the sign marking "sea level" on the cliff above Badwater. Badwater Road 30 minutes (17 miles/27km) south of Furnace Creek. Vault toilet located in parking lot.

The Danakil Desert lies in the Afar Triangle. It extends into the north-east of Ethiopia, the south of Eritrea and into much of Djibouti. It is known for its extreme heat and inhospitability. The deepest point in the desert lies up to 100 m below sea level in the Danakil Depression. The Danakil Desert's main industry is salt mining that is still cut by hand and loaded onto camels for transport and it is not uncommon to see caravans of camels making the slow journey through the desert. It is also home to wildlife, including African Wild Asses. Many volcanoes exist in the region, including Erta Ale and the Dabbahu Volcano. It was named by National Geographic as the "Cruelest Place on Earth". The area was subject to a BBC documentary by a BBC correspondent Kate Humble It is the homeland of the Afar people who are known for their ability to withstand the extremes and survive as they have done for hundreds of years.

The Salton Sea is a shallow, saline, endorheic rift lake located directly on the San Andreas Fault, predominantly in California's Imperial and Coachella Valleys. The lake occupies the lowest elevations of the Salton Sink in the Colorado Desert of Imperial and Riverside Counties in Southern California. Its surface is 234.0 ft (71.3 m) below sea level. The deepest point of the sea is 5 ft (1.5 m) higher than the lowest point of Death Valley. The sea is fed by the New, Whitewater, and Alamo Rivers, as well as agricultural runoff, drainage systems, and creeks. Over millions of years, the Colorado River has flowed into the Imperial Valley and deposited soil (creating fertile farmland), building up the terrain and constantly changing the course of the river. For the last thousands of years, the river has flowed into and out of the valley alternately, creating a freshwater lake, an increasingly saline lake, and a dry desert basin, depending on river flows and the balance between inflow and evaporative loss. The cycle of filling has been about every 400–500 years and has repeated itself many times. The latest natural cycle occurred around 1600–1700 as remembered by Native Americans who talked with the first European settlers. Fish traps still exist at many locations, and the Native Americans evidently moved the traps depending upon the cycle. The most recent inflow of water from the now heavily controlled Colorado River was accidentally created by the engineers of the California Development Company in 1905. In an effort to increase water flow into the area for farming, irrigation canals were dug from the Colorado River into the valley. Due to fears of silt buildup, a cut was made in the bank of the Colorado River to further increase the water flow. The resulting outflow overwhelmed the engineered canal, and the river flowed into the Salton Basin for two years, filling the historic dry lake bed and creating the modern sea, before repairs were completed. While it varies in dimensions and area with fluctuations in agricultural runoff and rainfall, the Salton Sea is about 15 miles (24 km) by 35 miles (56 km). With an estimated surface area of 343 square miles (890 km2) or 350 square miles (910 km2), the Salton Sea is the largest lake in California. The average annual inflow is less than 1,200,000 acre feet (1.5 km3), which is enough to maintain a maximum depth of 43 feet (13 m) and a total volume of about 6,000,000 acre feet (7.4 km3). However, due to changes in water apportionments agreed upon for the Colorado River under the Quantification Settlement Agreement of 2003, the overall water level of the sea is expected to decrease significantly between 2013 and 2021. The lake's salinity, about 56 grams per litre (9.0 oz/imp gal), is greater than that of the waters of the Pacific Ocean (35 g/l (5.6 oz/imp gal)), but less than that of the Great Salt Lake (which ranges from 50 to 270 g/l (8.0 to 43.3 oz/imp gal)). Recently, the concentration has been increasing at a rate of about 3% per year. About 4,000,000 short tons (3.6×109 kg) of salt are deposited in the valley each year.

Aydingkol is a lake in the Turpan Depression, Xinjiang Uyghur Autonomous Region, PR China. At 154 m below sea level, it is the lowest point in China. This lake is now totally dried, and very muddy and salty. In ancient times, Ayding Lake was known asjuéluòwǎn. The Uyghur derived nameAydingkölmeans "moon lake", due to the lake having a layer of white salt along its edge, giving the appearance of a shining moon. The lake is located in the south hinterland of the Turpan Depression, approximately 35 kilometres away from the city of Turpan. From east to west, the lake spans 40 kilometres; the north-south span is 8 kilometres; and the total area of the lake is 200 square kilometres. The lake was formed from the formation of an orogeny of the Himalayas 249 million years ago, and once held approximately 5 million square kilometres of inland sea, which at one time surged up and became vastly extended. During the winter of 1948, the lake basin was once filled with freshwater, which primarily originated from melted snow water from the mountains, as well as supplementary groundwater; owing to the lesser use of water to irrigate cultivated land during the winter, the water level was higher. During the summertime, the water level declined as a result of increased use of irrigation water for farming, as well as significant natural evaporation. Due to the expansion of farming in the region, the population using water from the lake subsequently increased, and by 1958 the lake only held up to 22 square kilometres, with a water depth of about 0.8 metres. As of 2000, except for the southwest region, little lakewater remained, and the entire lake area has become a saltpan, with the centre of the lake holding silt swamps, and no longer holds any native birds. During times of intense sunshine, mirages can often be seen. Nowadays, Ayding Lake has a salt mill, which uses the region's alum salt crystals and saltpeter raw materials to manufacture chemical products. Scenic tours also run near the lake. On 24 July 2015, a new China-wide high temperature record was set at a meteorological station near Aydingkol, with a temperature of 50.3 °C (122.5 °F).

The Qattara Depression is a depression in northwestern Egypt, specifically in the Matruh Governorate. The depression is part of the Western Desert of Egypt. The Qattara Depression lies below sea level, and its bottom is covered with salt pans, sand dunes, and salt marshes. The depression extends between the latitudes of 28°35' and 30°25' north and the longitudes of 26°20' and 29°02' east. The Qattara Depression was created by the interplay of salt weathering and wind erosion. Some 20 kilometres (10 mi) west of the depression lie the oases of Siwa in Egypt and Jaghbub in Libya in smaller but similar depressions. The Qattara Depression contains the second lowest point in Africa at an elevation of 133 metres (436 ft) below sea level, the lowest point being Lake Assal in Djibouti. The depression covers about 19,605 square kilometres (7,570 sq mi), a size comparable with Lake Ontario or twice as large as Lebanon. Due to its size and proximity to the shores of the Mediterranean Sea, studies have been made proposing to flood the area for various usages, such as the potential to generate hydroelectricity there. The Qattara Depression has the shape of a teardrop, with its point facing east and the broad deep area facing southwest. The northern side of the depression is characterised by steep escarpments up to 280 m (920 ft) high, marking the edge of the adjacent El Diffa plateau. To the south the depression slopes gently up to the Great Sand Sea. Within the Depression are salt marshes, under the northwestern and northern escarpment edges, and extensive dry lake beds that flood occasionally. The marshes occupy approximately 300 square kilometres (120 sq mi), although wind-blown sands are encroaching in some areas. About a quarter of the region is occupied by dry lakes composed of hard crust and sticky mud, and occasionally filled with water. The depression was initiated by either wind or fluvial erosion in the late Neogene, but during the Quaternary Period the dominant mechanism was a combination of salt weathering and wind erosion working together. First, the salts break up the depression floor, then the wind blows away the resulting sands. This process is less effective in the eastern part of the depression, due to lower salinity groundwater. Groves of umbrella thorn acacia (Vachellia tortilis), growing in shallow sandy depressions, andPhragmitesswamps represent the only permanent vegetation. The acacia groves vary widely in biodiversity and rely on runoff from rainfall and groundwater to survive. The Moghra Oasis in the northeastern part of the Depression has a 4 km2 (1.5 sq mi) brackish lake and aPhragmitesswamp. The southwestern corner of the depression is part of the Siwa Protected Area which protects the wild oasis in and around the Siwa Oasis. The Depression is an important habitat for the cheetah, with the largest number of recent sightings being in areas in the northern, western and northwestern part of the Qattara Depression, including the highly isolated, wild oases of Ain EI Qattara and Ein EI Ghazzalat and numerous acacia groves both inside and outside the depression. Gazelles (Gazella dorcasandGazella leptoceros) also inhabit the Qattara Depression, being an important food source for the cheetah. The largest gazelle population exists in the southwestern part of the Qattara Depression within a vast area of wetlands and soft sand. The area of 900 km2 (350 sq mi), includes the wild oases of Hatiyat Tabaghbagh and Hatiyat Umm Kitabain, and is a mosaic of lakes, salt marshes, scrubland, wild palm groves andDesmostachya bipinnatagrassland. Other common fauna include the Cape hare (Lepus capensis), Egyptian jackal (Canis aureus hupstar), sand fox (Vulpes rueppelli) and more rarely the fennec fox (Vulpes zerda). Barbary sheep (Ammotragus lervia) were once common here but now they are few in number. Extinct species from the area include the scimitar oryx (Oryx dammah), addax (Addax nasomaculatus) and bubal hartebeest (Alcelaphus buselaphus). Also theDroseridites baculatus, an extinct plant known only from fossils of its pollen, was found at the Ghazalat-1 Well. The climate of the Qattara Depression is highly arid with annual precipitation between 25 and 50 mm (0.98 and 1.97 in) on the northern rim to less than 25 mm (0.98 in) in the south of the depression. The average daily temperature varies between 36.2 to 6.2 °C (97.2 to 43.2 °F) during summer and winter months. The prevailing wind forms a largely bimodal regime with most wind coming from north easterly and westerly directions. This causes the linear dune formations in the Western desert between the Qattara Depression and the Nile valley. Wind speeds peak in March at 11.5 m/s (26 mph) and minimal in December at 3.2 m/s (7.2 mph). The average wind speed is about 5 to 6 m/s (11 to 13 mph). Several days each year in the months March to May khamsin winds blow in from the south and bringing extremely high temperatures as well as sand and dust with them. There is one permanent settlement in the Qattara Depression, the Qara Oasis. The oasis is located in the westernmost part of the depression and is inhabited by about 300 people. The Depression is also inhabited by the nomadic Bedouin people and their flocks, with the uninhabited Moghra Oasis being important in times of water scarcity during the dry seasons. The Qattara Depression contains many oil concessions, and several operational oil fields. The drilling companies include Royal Dutch Shell and the Apache Corporation. The elevation of the depression was first measured in 1917 by an officer of the British Army leading a light car patrol into the region. The officer took readings of the height of the terrain with an aneroid barometer on behalf of John Ball, who later would also publish on the region. He discovered that the spring Ain EI Qattara lay about 60 metres (200 ft) below sea level. Because the barometer got lost and the readings were so unexpected, this find had to be verified. During 1924–25, Ball again organised a survey party, this time with the sole purpose to triangulate the elevation on a westerly line from Wadi El Natrun. The survey was led by G.F. Walpole who had already distinguished himself by triangulating the terrain across 500 km (310 mi) from the Nile to Siwa via Bahariya. He confirmed the earlier readings and proved the presence of a huge area below sea level, with places as deep as 133 m (436 ft) below sea level. Knowledge about the geology of the Qattara Depression was greatly extended by Ralph Alger Bagnold, a British military commander and explorer, through numerous journeys in the 1920s and 1930s. Most notable was his 1927 journey during which he crossed the depression east to west and visited the oases of Qara and Siwa. Many of these trips used motor vehicles (Ford Model-Ts) which used special techniques for driving in desert conditions. These techniques were an important asset of the Long Range Desert Group which Bagnold founded in 1940. After the discovery of the depression, Ball published the triangulation findings about the region in October 1927 inThe Geographical Journal. He also gave the region its name "Qattara" after the spring Ain EI Qattara where the first readings were taken. The name literally means "dripping" in Arabic. Six years later in 1933, Ball was the first to publish a proposal for flooding the region to generate hydroelectric power in his article "The Qattara Depression of the Libyan Desert and the possibility of its utilisation for power-production". During World War II, the depression's presence shaped the First and Second Battles of El Alamein. It was considered impassable by tanks and most other military vehicles because of features such as salt lakes, high cliffs and/or escarpments, and fech fech (very fine powdered sand). The cliffs in particular acted as an edge of the El Alamein battlefield, which meant the British Empire's forces could not be outflanked to the south. Both Axis and Allied forces built their defences in a line from the Mediterranean Sea to the Qattara Depression. These defences became known as the Devil's gardens, and they are for the most part still there, especially the extensive minefields. No large army units entered the Depression, although German Afrika Korps patrols and the British Long Range Desert Group did operate in the area, since these small units had considerable experience in desert travel. The RAF's repair and salvage units (e.g. 58 RSU) used a route through the depression to salvage or recover aircraft that had landed or crashed in the Western desert away from the coastal plain. The RSUs included six-wheel-drive trucks, Coles cranes, and large trailers, and were particularly active from mid-1941 when Air Vice-Marshal G.G. Dawson arrived in Egypt to address the lack of serviceable aircraft. A German communications officer stationed in the depression was cited by Gordon Welchman as being unintentionally helpful in the breaking of the Enigma machine code, due to his regular transmissions stating there was "nothing to report". The large size of the Qattara Depression and the fact that it falls to a depth of 133 m (436 ft) below mean sea level has led to several proposals to create a massive hydroelectric power project in northern Egypt rivalling that of the Aswan High Dam. This project is known as the Qattara Depression Project. The proposals call for a large canal or tunnel being excavated from the Qattara due north of 55 to 80 kilometres (34 to 50 mi) depending on the route chosen to the Mediterranean Sea to bring seawater into the area. An alternative plan involved running a 320-kilometre (200 mi) pipeline northeast to the freshwater Nile River at Rosetta. Water would flow into a series of water penstocks which would generate electricity by releasing the water at 60 m (200 ft) below sea level. Because the Qattara Depression is in a very hot dry region with very little cloud cover, the water released at the −70 metres (−230 ft) level would spread out from the release point across the basin and evaporate from solar influx. Because of evaporation, more water can flow into the depression, thus forming a continual source of power. Eventually this would result in a hypersaline lake or a salt pan as the water would evaporate and leave behind the salt that it contained. Plans to use the Qattara Depression for the generation of electricity date back to 1912 from Berlin geographer Albrecht Penck. The subject was discussed in more detail by Dr. John Ball in 1927, who estimated a hydroelectric potential of 125 to 200 megawatts. In 1957, the American Central Intelligence Agency proposed to President Dwight Eisenhower that peace in the Middle East could be achieved by flooding the Qattara Depression. The resulting lagoon, according to the CIA, would have four benefits: it is easier to extract oil from offshore platforms than in swamps the flow will turn the hydroelectric power station" fishing, resorts, pearls" It would get Egyptian president Gamel Abdel Nasser's "mind on other matters" because "he need[ed] some way to get off the Soviet hook" In the 1970s and early 1980s, several proposals to flood the area were made by Friedrich Bassler and theJoint Venture Qattara, a group of mainly German companies. They wanted to make use of peaceful nuclear explosions to construct a tunnel, drastically reducing construction costs compared to conventional methods. This project proposed to use 213 H-bombs, with yields of one to 1.5 megatons, detonated at depths of 100 to 500 metres (330 to 1,640 ft). That fit within the Atoms for Peace program proposed by US President Dwight Eisenhower in 1953. The Egyptian government turned down the idea. Planning experts and scientists intermittently put forward potentially viable options, whether of a tunnel or canal, as an economic, ecological, and energy solution in Egypt, often coupled with the idea of new settlements.

Karagiye is a 40 kilometres (25 mi) long karst trench close to the Caspian Sea. At its lowest point at Vpadina Kaundy, it is approximately 134 metres (440 ft) below sea level. It is the lowest point in Central Asia, Kazakhstan, and the former Soviet Union. It is also known as the Karagiye Depression and Karagiye Mountain Trench. The trench was formed as soluble limestone, dolomite and gypsum dissolved forming potholes, funnels and caves that eventually collapsed. Today the trench features many scarps and offsets and generates long rain clouds caused by the air rising above it. There is a vernal lake in the south-west of the trench and a stream rising from a drilled well that disappears back into the ground within the trench. The trench is inhabited by mouflon, corsac, snakes, hares and vultures. It is the only place within the Mangyshlak Peninsula where mushrooms grow and these are collected by locals.

Akjagaýa is a depression in the northwest Karakum Desert. It is located to the south of Sarykamyska Valley. It is about 50 km long and 6 km wide. The lowest point is 81 m below sea level, making it the lowest point in Turkmenistan.

Lac Assal. 150m below seal level, Lake Assal is the third lowest point on Earth. You'll need to hire a car or ask someone who lives in Djibouti to drive you there. Expect a rough ride: the roads outside the capital are destroyed by the truck traffic between Djibouti and Ethiopia. The road passes within sight of the Devil's Island, and some impressive views. Expect to be awestruck.

Laguna del Carbón (Coal Lagoon) is an endorheic salt lake in the Gran Bajo de San Julián (Great San Julián Depression) of Santa Cruz Province, Argentina, 54 km from Puerto San Julián. At 105 metres (344 ft) below sea level, it is the lowest point of both the Western and Southern Hemispheres, and the seventh lowest point on Earth. As in several other locations in Patagonia, dinosaur fossils have been found in the area.