The Lanner Gorge is located in the far North of the
Kruger National Park
Kruger National Park is a South African National Park and one of the largest game reserves in Africa. It covers an area of in the provinces of Limpopo and Mpumalanga in northeastern South Africa, and extends from north to south and from ...
. It forms the boundary between the Kruger National Park to the South and the
Makuleke Concession to the North. It was carved by the
Luvuvhu River and is at some points more than 150 m deep.
Description
Lanner Gorge is approximately 11 km long and is carved into
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 ...
s and
shales
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especiall ...
.
Geology
The uppermost rocks are
gravel
Gravel is a loose aggregation of rock fragments. Gravel occurs naturally throughout the world as a result of sedimentary and erosive geologic processes; it is also produced in large quantities commercially as crushed stone.
Gravel is classif ...
s which are thought to be
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...
in age while the basal shales are thought to be
Permian
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Pale ...
in age.
The majority of the walls appear to be composed of
Triassic
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago (Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period ...
and
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The J ...
aged sandstones formed under
arid
A region is arid when it severely lacks available water, to the extent of hindering or preventing the growth and development of plant and animal life. Regions with arid climates tend to lack vegetation and are called xeric or desertic. Most ...
conditions.
The Luvuvhu river has eroded through the sandstones and shales and formation is still active as is evidenced by the many collapsed
boulder
In geology, a boulder (or rarely bowlder) is a rock fragment with size greater than in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive.
In ...
s in the river bed.
Dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...
fossils have been discovered in the walls of Lanner Gorge and rocks in the surrounding region.
Desert roses are also common in the Triassic and Jurassic-aged rocks.
The precise geological age of the gorge is unknown, however, the absence of
Early Stone Age occupation in the many caves and shelters in the
gorge
A canyon (from ; archaic British English spelling: ''caƱon''), or gorge, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales. Rivers have a natural tendency to c ...
suggests that the gorge may be relatively young and have formed in the last 2 million years.
Flooding
As the Luvuvhu River is still a young, active river, flooding is common and the gorge is often cluttered with debris such as fallen trees.
Access
Access to the gorge is extremely limited due to its steepness and its status as a wilderness area of Kruger. Nevertheless, some walking trails approach and enter the gorge from both the Makuleke area
as well as from the Kruger side.
Wildlife
The gorge holds a variety of wildlife including abundant
crocodile
Crocodiles (family Crocodylidae) or true crocodiles are large semiaquatic reptiles that live throughout the tropics in Africa, Asia, the Americas and Australia. The term crocodile is sometimes used even more loosely to include all extant ...
s,
hippos,
hyrax
Hyraxes (), also called dassies, are small, thickset, herbivorous mammals in the order Hyracoidea. Hyraxes are well-furred, rotund animals with short tails. Typically, they measure between long and weigh between . They are superficially simil ...
es,
baboon
Baboons are primates comprising the genus ''Papio'', one of the 23 genera of Old World monkeys. There are six species of baboon: the hamadryas baboon, the Guinea baboon, the olive baboon, the yellow baboon, the Kinda baboon and the chac ...
s,
leopard
The leopard (''Panthera pardus'') is one of the five extant species in the genus '' Panthera'', a member of the cat family, Felidae. It occurs in a wide range in sub-Saharan Africa, in some parts of Western and Central Asia, Southern Russia ...
s and other small game.
Elephants
Elephants are the largest existing land animals. Three living species are currently recognised: the African bush elephant, the African forest elephant, and the Asian elephant. They are the only surviving members of the family Elephantidae ...
and
buffalo and other larger game are common at both ends of the gorge, but have difficulty in accessing the central region due to the steep walls.
There is an abundance of birds including raptors such as the
black eagle
The black eagle (''Ictinaetus malaiensis'') is a bird of prey. Like all eagles, it is in the family Accipitridae, and is the only member of the genus ''Ictinaetus''. They soar over forests in the hilly regions of tropical and subtropical South ...
and
lanner falcon
The lanner falcon (''Falco biarmicus'') is a medium-sized bird of prey that breeds in Africa, southeast Europe and just into Asia. It prefers open habitat and is mainly resident, but some birds disperse more widely after the breeding season. A ...
- after which the gorge is named.
Other interesting facts
* The archeological site of
Thulamela is located just outside the eastern end of the gorge.
* Legend has it that a former chief used to throw criminals and enemies to their death from the highest points of the gorge.
References
{{reflist
External links
Kruger National Park
Landforms of Limpopo
Canyons and gorges of South Africa
Kruger National Park