Lake Suesca is a natural

water body A body of water or waterbody (often spelled water body) is any significant accumulation of water on the surface of Earth or another planet. The term most often refers to oceans, seas, and lakes, but it includes smaller pools of water such as p ...

situated on the

Altiplano Cundiboyacense The Altiplano Cundiboyacense () is a high plateau located in the Eastern Cordillera of the Colombian Andes covering parts of the departments of Cundinamarca and Boyacá. The altiplano corresponds to the ancient territory of the Muisca. The Alti ...

, belonging to the municipalities of

Suesca Suesca is a town and municipality in the Almeidas Province, part of the department of Cundinamarca, Colombia. It is located on the Altiplano Cundiboyacense, north of the capital Bogotá. Suesca forms the northern edge of the Bogotá savanna and i ...

and

Cucunubá Cucunubá is a municipality and town of Colombia in the Ubaté Province, part of the department of Cundinamarca. It borders with the municipalities of Ubaté, Lenguazaque, Suesca, Chocontá, Tausa and Sutatausa. Geography The urban centre ...

in the department of Cundinamarca,

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

. The basin has a semi-elliptical shape that extends on a north–south axis, with roughly length and width.Length, width and depth of Lake Suesca
/ref> The average depth is . It is located in the

Eastern Ranges The Eastern Ranges is an Australian rules football team in the NAB League, the Victorian statewide under-18s competition. The club is a founding member of the competition (1992) and has produced several players for the Australian Football Leagu ...

, on the

anticlinal Anticlinal may refer to: *Anticline, in structural geology, an anticline is a fold that is convex up and has its oldest beds at its core. *Anticlinal, in stereochemistry, a torsion angle between 90° to 150°, and –90° to –150°; see Alkane_st ...

Nemocón Nemocón is a municipality and town of Colombia in the Central Savanna Province, part of the department of Cundinamarca. Nemocón, famous for its salt mine, was an important village in the Muisca Confederation, the country in the central Colomb ...

, in the northeast of the department, at an altitude of .CAR, 1993

Description

Geology and soils

Geologically Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Eart ...

, the lake is of

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...

origin and is linked to the formation of the

, which had a strong uprising activity during the

Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58sedimentary rock Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...

s, and the

Guadalupe Group The Guadalupe Group ( es, Grupo Guadalupe, K2G, Ksg) is a geological group of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The group, a sequence of shales and sandstones, is subdivided into three formations; Arenisca Dur ...

Guaduas Guaduas () is a town in Colombia, in the Lower Magdalena Province department of Cundinamarca, about 117 km from Bogotá. It is an agricultural and tourist center of some importance with a population of about 41,000. Its name refers to a ...

Bogotá Bogotá (, also , , ), officially Bogotá, Distrito Capital, abbreviated Bogotá, D.C., and formerly known as Santa Fe de Bogotá (; ) during the Spanish period and between 1991 and 2000, is the capital city of Colombia, and one of the larges ...

and

Cacho Cacho may refer to: Dice Games * Cacho Alalay, a South American dice game popular in Bolivia * Dudo, a South American dice game popular in Chile, also known as Pico or Perudo Geology * Cacho Formation, a geological formation in the Colombian A ...

formations are present in the area. The basin is crossed along its axis by the Suesca Fault, uplifting

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ...

.Bastidas, 2001Leon et al., 1998 The soils of the basin are classified as

alfisol Alfisols are a soil order in USDA soil taxonomy. Alfisols form in semi-arid to humid areas, typically under a hardwood forest cover. They have a clay-enriched subsoil and relatively high native fertility. "Alf" refers to aluminium (Al) and iron ( ...

s, where

erosion Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distin ...

areas are classified as "bad soils". Generally these correspond to cold and dry climates, with corrugated relief and highly evolved soils, where the presence of erosion is common, and most horizons have enrichment with clay. These soils were formed during the

Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ...

, containing deposits of volcanic ash from the Cordillera Central, which weathered into clays, currently present in the lower strata.

Vegetation and climate

The original vegetation was composed of encenillo and "corono" forests, accompanied by more

xerophytic A xerophyte (from Greek ξηρός ''xeros'' 'dry' + φυτόν ''phuton'' 'plant') is a species of plant that has adaptations to survive in an environment with little liquid water, such as a desert such as the Sahara or places in the Alps or th ...

Andean

communities A community is a Level of analysis, social unit (a group of living things) with commonality such as place (geography), place, Norm (social), norms, religion, values, Convention (norm), customs, or Identity (social science), identity. Communiti ...

, which correspond to the Low montane dry forest (bs-MB) according to the

Holdridge life zones The Holdridge life zones system is a global bioclimatic scheme for the classification of land areas. It was first published by Leslie Holdridge in 1947, and updated in 1967. It is a relatively simple system based on few empirical data, giving obj ...

. The actual land cover is dominated by

exotic species An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there ...

, mostly ''

Acacia decurrens ''Acacia decurrens'', commonly known as black wattle or early green wattle, is a perennial tree or shrub native to eastern New South Wales, including Sydney, the Greater Blue Mountains Area, the Hunter Region, and south west to the Australian Cap ...

'', with few remnants of native vegetation in the north and south of the basin. From a climatic point of view, the region has a

bimodal In statistics, a multimodal distribution is a probability distribution with more than one mode (statistics), mode. These appear as distinct peaks (local maxima) in the probability density function, as shown in Figures 1 and 2. Categorical, ...

rainfall regime, with an annual average of 647 mm, average temperatures of 14 °C, 70% relative humidity and evaporation of 1331 mm/year. The winds are a determinant factor for the vegetation and climate, as they are mainly influenced by Sabana de Bogotá,

Magdalena River Valley The Magdalena River Valley ( es, Valle del Río Magdalena) is a valley in Colombia located within the Colombian Andes. The valley is specifically situated between the Central and Eastern Ranges and crossed by the river of the same name, the Magdale ...

and the Orinoco Plains, which converge in the area to generate specific characteristics from the point of view of moisture and the feasibility of rainfall. The region is under the jurisdiction of the Corporación Autonoma Regional de Cundinamarca (CAR) (environmental authority) and its central axis (north–south) serves as the boundary between the municipalities of

and

Muisca sacred lake

As with various other lakes on the Altiplano, Tota, Siecha,

Guatavita Guatavita is a municipality and town of Colombia in the Guavio Province of the department of Cundinamarca. Guatavita is located 75 km northeast of the capital Bogotá. It borders Sesquilé and Machetá in the north, Gachetá and Junín in ...

and Iguaque, the

Muisca The Muisca (also called Chibcha) are an indigenous people and culture of the Altiplano Cundiboyacense, Colombia, that formed the Muisca Confederation before the Spanish conquest. The people spoke Muysccubun, a language of the Chibchan langu ...

who were the original inhabitants of the area before the

Spanish conquest of the Muisca The Spanish conquest of the Muisca took place from 1537 to 1540. The Muisca were the inhabitants of the central Andean highlands of Colombia before the arrival of the Spanish conquistadors. They were organised in a loose confederation of differe ...

, performed

religious Religion is usually defined as a social system, social-cultural system of designated religious behaviour, behaviors and practices, morality, morals, beliefs, worldviews, religious text, texts, sacred site, sanctified places, prophecy, prophecie ...

rituals at Lake Suesca.

Environmental issues

The basin has suffered severe deforestation and erosion, which together have negatively affected the lake

ecosystem An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the syste ...

, which added to the impact of

climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...

have led to a significant reduction of the water surface. Plans for sustainable development are made in recent years. Since 1970, a

soil remediation Environmental remediation deals with the removal of pollution or contaminants from environmental media such as soil, groundwater, sediment, or surface water. Remedial action is generally subject to an array of regulatory requirements, and may also ...

process with ''

'', ''

Pinus patula ''Pinus patula'', commonly known as patula pine, spreading-leaved pine, or Mexican weeping pine, and in Spanish as ''pino patula'' or ''pino llorón'', (''patula'' Latin = “spreading”) is a tree native to the highlands of Mexico. It grows f ...

'' and ''

Eucalyptus globulus ''Eucalyptus globulus'', commonly known as southern blue gum or blue gum, is a species of tall, evergreen tree endemic to southeastern Australia. This ''Eucalyptus'' species has mostly smooth bark, juvenile leaves that are whitish and waxy on ...

'' was started, but due to the lack of

management Management (or managing) is the administration of an organization, whether it is a business, a nonprofit organization, or a government body. It is the art and science of managing resources of the business. Management includes the activities o ...

, the problems related with

water scarcity Water scarcity (closely related to water stress or water crisis) is the lack of fresh water Water resources, resources to meet the standard water demand. There are two types of water scarcity: physical or economic water scarcity. Physical water ...

due to the reduction of

runoff Runoff, run-off or RUNOFF may refer to: * RUNOFF, the first computer text-formatting program * Runoff or run-off, another name for bleed, printing that lies beyond the edges to which a printed sheet is trimmed * Runoff or run-off, a stock market ...

and water contained in the soil increased. Nowadays the entire basin is located within a forest reserve that has little management by the authorities. By

oral tradition Oral tradition, or oral lore, is a form of human communication wherein knowledge, art, ideas and cultural material is received, preserved, and transmitted orally from one generation to another. Vansina, Jan: ''Oral Tradition as History'' (1985 ...

, it is known that the lake had a great variety of species, such as "Guapucha" ''(

Grundulus bogotensis ''Grundulus'' is a genus of characins found in Colombia and Ecuador in South America. There are currently three described species. Species * ''Grundulus bogotensis'' (Alexander von Humboldt, Humboldt, 1821) * ''Grundulus cochae'' César Román- ...

'') and "Capitan de la Sabana" (''

Eremophilus mutisii ''Eremophilus mutisii'' is a species of catfish ( order Siluriformes) of the family Trichomycteridae, and the only member of its genus. This fish grows to about 30 centimetres (12 in) and originates from the Bogotá River basin, which i ...

''), now locally extinct due to the

desiccation Desiccation () is the state of extreme dryness, or the process of extreme drying. A desiccant is a hygroscopic (attracts and holds water) substance that induces or sustains such a state in its local vicinity in a moderately sealed container. ...

of the water body and the introduction of carp and trout, which also disappeared by the same effect of

El Niño El Niño (; ; ) is the warm phase of the El Niño–Southern Oscillation (ENSO) and is associated with a band of warm ocean water that develops in the central and east-central equatorial Pacific (approximately between the International Date L ...

in 1998.Fish in Lake Suesca
The lake is an important stop-over for many

migratory birds Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by ...

, but few counting exercises have been made in the area.

Places of interest

* "La Laguna" train station on the

Bogotá Savannah Railway The Bogotá Savannah Railway was a company that provided transport for passengers from 1889 between the cities of the Metropolitan Area of Bogotá. The Savannah railway was liquidated in 1991 along with the National Railways of Colombia. Current ...

* Monoliths of Suesca, protruding rock formations located at the south of the basin * Bababuy Hill, at the north of the basin

References

Bibliography

* * * * {{Muisca navbox, Mythology and religion

Geography of Cundinamarca Department

Lakes A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger ...