That would be the only excuse I can imagine.
If that's the case they wouldn't have recognized what a feat that would have been in ancient times.
It will be stupendous if it is discovered we're just beginning to discover.
Remember the pyramids and cities already spotted in Central American jungles, using new technology:
Ancient Mayan Ruins Hidden By Jungle Discovered in Guatemala
The new discoveries in this Central American country include urban centers with sidewalks, homes, terraces, ceremonial centers, irrigation canals and fortifications.
AFP Relaxnews Updated:February 2, 2018, 12:31 PM IST
Experts using an aerial high-tech laser scanner have discovered thousands of ancient Maya structures hidden under the thick jungle of northern Guatemala, officials said on Thursday.
Some 60,000 structures were found over the past two years in a scan of a region in the northern department of El Peten, which borders Mexico and Belize, said Marcello Canuto, one of the project's top investigators. These findings are a "revolution in Maya archaeology," Canuto said.
The new discoveries in this Central American country include urban centers with sidewalks, homes, terraces, ceremonial centers, irrigation canals and fortifications, said Canuto, an archaeologist at Tulane University in the United States. Among the finds was a 30-meter high pyramid that had been earlier identified as a natural hill in Tikal, Guatemala's premier archaeological site. Also discovered in Tikal: a series of pits and a 14 kilometer-long wall.
The Maya civilization reached its height in what is present-day southern Mexico, Guatemala, and parts of Belize, El Salvador and Honduras between 250 and 950 CE. Researchers now believe that the Maya had a population of 10 million, which is "much higher" than previous estimates, Canuto said.
The project relied on a remote sensing method known as LiDAR (Light Detection and Ranging). Aircraft with a LiDAR scanner produced three-dimensional maps of the surface by using light in the form of pulsed laser linked to a GPS system. The technology helped researchers discover sites much faster than using traditional archaeological methods. "Now it is no longer necessary to cut through the jungle to see what's under it," said Canuto.
https://www.news18.com/news/lifestyle/ancient-mayan-ruins-hidden-by-jungle-discovered-in-guatemala-1648809.html
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Mayan Megalopolis Discovered in the Guatemalan Jungle
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Egyptian pyramids found by infra-red satellite images
By Frances Cronin
BBC News
25 May 2011
eventeen lost pyramids are among the buildings identified in a new satellite survey of Egypt.
More than 1,000 tombs and 3,000 ancient settlements were also revealed by looking at infra-red images which show up underground buildings.
Initial excavations have already confirmed some of the findings, including two suspected pyramids.
The work has been pioneered at the University of Alabama at Birmingham by US Egyptologist Dr Sarah Parcak.
More:
http://www.bbc.com/news/world-13522957
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