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Lost City

A lost urban center known only from inscriptions that existed some 1,200 years ago near Angkor in what is now Cambodia has been uncovered using airborne laser scanning . The previously undocumented cityscape , called Mahendraparvata , is hidden beneath a dumb woodland on the holy plenty Phnom Kulen , meaning Mountain of the Lychees , located in Siem Reap Province ( show here ) .

Angkor Wat

The cityscape came into clean view along with a huge expanse of ancient urban space that made up Greater Angkor , the big area where one of the largest religious monuments ever constructed — Angkor Wat ( shown here ) , have in mind " temple metropolis " — was work up between A.D. 1113 and 1150 .

Hidden Beneath a Forest

Here , the lose urban center of Mahendraparvata revealed in a shaded succour map of terrain beneath the flora in the Phnom Kulen acquisition area , with elevation derived from the lidar digital terrain model at 0.5 meter resolution and 4x vertical exaggeration . greenish denotes antecedently document archaeological feature film ; areas shaded red contain fresh document features declarative of an all-encompassing urban layout .

Koh Ker

The lidar also uncovered the 10th - C " transitory capital " of Koh Ker . ( This mathematical function shows previously identified features in the central area . )

New City Features

The lidar data also reveal an array of previously undocumented elements of the upper-case letter of Koh Ker , such as ponds , reservoirs and mounds that are " open , " or not delimited in space by any mannikin of enclosure . ( Red denotes a modern road . )

Major Temple Sites

Here , a shaded backup single-valued function of terrain beneath the vegetation at major temple sites in the Angkor part , with tiptop deduce from the lidar digital terrain model at 1 m resolution . Top entrust : Bakong ( tardy 9th century ) . Top centre : Phnom Bakheng ( late 9th century ) . Top right wing : Pre Rup ( mid-10th century ) . Middle left : Chau Srei Vibol ( 11th to 12th centuries ) . Middle inwardness : Beng Mealea ( early 12th century ) . Middle right field : Angkor Wat ( mid-12th century ) . Bottom left : Preah Khan ( late twelfth hundred ) . Bottom plaza : Ta Prohm ( late twelfth century ) . Bottom decently : Bayon ( late 12th to 13th centuries ) . Red denotes modern linear feature such as roadways and canals .

a waterfall in Siem Reap, Cambodia.

angkor wat

lidar survey showing lost city in cambodia near Angkor

lidar survey showing koh ker in cambodia

lidar survey showing koh ker in cambodia

major temple sites at Angkor reveled with lidar technology

an aerial view of an excavated fortress

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