Located
in the centre of the province of Ninh Binh, 80 km from the city of Hanoi to the
south, Trang An is a complex of scenic landscapes and historical and cultural
heritages boasting a system of adjoining limestone mountains and valleys
belonging to the ancient ocean branch of the Tethys from China into Vietnam, on
an area of around 10,000 ha, including three areas: Trang An eco-tourism site,
Tam Coc – Bich Dong tourism site and Hoa Lu Ancient Capital cultural and
historical heritage site.
Trang
An complex is often referred to as a “Halong Bay on land”, but few people know
that only a few thousand years also there existed an ancient bay demonstrated
by the water marks on the limestone cliffs, vestiges of oysters on them,
abrasion terraces, and marine sediments of the Quaternary period.
Trang
An is also a tropical karst landscape with a humid monsoon climate, and
witnessed a lot of sea invasions and transformations similar to Halong Bay; its
karst landscape are terrestrial, concentrated on a smaller area, and regular in
variety of shapes and sizes.
The
landscape is replete with tower shaped karst along the fringe of a block of
limestone islands with flat peaks of varying styles. The karst islands are
widely scattered among incoherent flat fields and, in season, neighbor to a sea
of golden grain.
These
cone shapes of different sizes seem to be floating, scattered and unconnected
on the even and flat rice fields, filed with the color of ripen rice. The karst
landscape, with a pyramid shape in the middle, connects the sharp pointed peaks
into a chain with vertical cliffs enclosing deep valleys in an isometric or
linear form.
Trang
An is made up of a complex of scenic landscapes and has intricate and diversified
ecosystems, particularly as a cradle of the prehistoric people.
All
these factors have made a scenic landscapes complex of Trang An to have
outstanding and distinctive values terms of landscape, geomorphology, geology,
and culture.
Values
in terms of landscape and karst geomorphology:
Trang
An has many types of distinctive and unique karst landscape: “remaining karst
hills separated from the plains”, “peaks connecting valleys”, “peaks connecting
sinkholes”, “tropical karst submerged by the sea”.
No
where else in the world is there a landscape similar to Ha Long Bay but
fossilized on land like in Trang An.
No
where else in the world is the karst terrain shaped like a narrow wall with
sloped skeleton walls extending into an arch enclosing a large, empty space
inside like that in Trang An – the rock capital city.
Geological
and geomorphologic values:
Trang
An, Ninh Binh is located in an area full of historical geological upheavals:
bearing unique characteristics in terms of structure and tectonics in the style
of a “broken rice pancake”.
Trang
An is characterized by a “meshy” network of young isometric non-pronous
sinkholes.
The
long and wide valley connected with the aged plains in the Southeast parts of
the Trang An limestone block is characteristic: They become narrower toward the
northwest and extends toward the southeast.
The
typical “pulse” neotectonic movements lead to the formation of a “surface
balance valley” and “front mountain balance surface.” The three floors of the
cave area 10m – 20m, 20m – 30m and 40m – 60m.
Cultural
values:
Recently
scientists from the Cambridge University (the UK) and the Vietnam Archaeology
Institute conducted surveys, research and eight archaeological excavations at
Nui Tuong Cave, Oc Cave, vang stone roof, Ong Hay stone roof, Cho stone roof,
Trong Cave, Boi Cave and five relics at Hang Pagoda.
The
results included many working tools, pottery, and food remains of the ancient
people such as animal bones, shells of species of mollusks and crustaceans.
Especially,
excavations found human remains in three of six locations. Based on the results
of the research, scientists at home and abroad have put forward some initial
assessment of the value of the prehistoric culture of the Trang An region.
Trang
An pre-historic relics are concentrated in high density, forming different
groups in the swampy and follow karst valley. Scientists discovered a
relatively intact cultural layer from 1.0m – 2.0m thick, reflecting one or two
periods, before, during or after the middle Holocene marine transgression.
The
tradition of manipulating limestone objects and using of chiseling tools made
from limestone was long maintained.
Pottery
appeared early, and was homogeneous in material, pattern, and type among the
relics and stayed stable and unified during the long history of the culture of
the swampy and hollow valley.
Permanent
settlements took place in the caves (2,300 – 3,000 years ago), affected by
changing karst valley landscape environment, caused by marine transgression and
recession.
Assorted
livelihoods were evident along a wide spectrum, with gathering overrunning
hunting, planting outdoing animal husbandry, and adaptations to the natural
environment.
Trang
An landscapes complex boasts outstanding, fascinating and unique values in
terms of natural landscapes and preserves the vestiges of natural history,
cultural imprints, and many remains of outstanding traditional cultural values
of the local communities that are being promoted and conserved.
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