Cool archaeology find in Mexico

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A city the size of Manhatten - from the UK Guardian:

Laser scanning reveals 'lost' ancient Mexican city 'had as many buildings as Manhattan'
Archaeology might evoke thoughts of intrepid explorers and painstaking digging, but in fact researchers say it is a high-tech laser mapping technique that is rewriting the textbooks at an unprecedented rate.

The approach, known as light detection and ranging scanning (lidar) involves directing a rapid succession of laser pulses at the ground from an aircraft.

The time and wavelength of the pulses reflected by the surface are combined with GPS and other data to produce a precise, three-dimensional map of the landscape. Crucially, the technique probes beneath foliage – useful for areas where vegetation is dense.

Earlier this month researchers revealed it had been used to discover an ancient Mayan city within the dense jungles of Guatemala, while it has also helped archaeologists to map the city of Caracol – another Mayan metropolis.

A bit more - talking about the scope of the city:

“That is a huge area with a lot of people and a lot of architectural foundations that are represented,” said Fisher. “If you do the maths, all of a sudden you are talking about 40,000 building foundations up there, which is [about] the same number of building foundations that are on the island of Manhattan.”

The team also found that Angamuco has an unusual layout. Monuments such as pyramids and open plazas are largely concentrated in eight zones around the city’s edges, rather being located in one large city centre. According to Fisher, more than 100,000 people are thought to have lived in Angamuco in its heyday between about 1000AD to 1350AD. “[Its size] would make it the biggest city that we know of right now in western Mexico during this period,” said Fisher.

There is so much that we simply do not know about our history. Amazing find!

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