Researchers in eastern China have uncovered evidence that China's royal burial tradition may have begun far earlier than historians believed. The finding comes from the Liangzhu Archaeological Ruins in Zhejiang Province, where a newly detected rectangular structure is now suspected to be one of the earliest imperial-style mausoleums in the country.
The structure, discovered on the outskirts of the ancient city, appears to be a wall-like enclosure that may have served as a burial site for Liangzhu's ruling elite. Early assessments suggest it could date back more than 5,000 years.
If confirmed, it would rewrite the timeline of China's mausoleum system, placing the origins of royal tombs thousands of years before the Qin and Han dynasties.
The discovery was made using a new "air-sky-land-digital" survey method developed by Wang Ningyuan and his team at the Zhejiang Institute of Cultural Relics and Archaeology. The system merges four types of data: drone imagery, satellite scans, on-the-ground fieldwork, and GIS mapping. The approach allows researchers to detect buried structures with minimal disturbance to the site.
This method has already reshaped knowledge of the Liangzhu civilization. In 2009, GIS tools confirmed the city's triple-zone layout. In 2011, satellite images revealed a vast dam network, showing that the city once controlled a large hydraulic system. Between 2021 and 2024, remote sensing exposed more than 20 new dams and four long ridges, completing the picture of a planned water management network.
Archaeologists say the findings prove that Liangzhu was not a loose cluster of settlements, but an early state with organized leadership, large-scale construction, and social hierarchy.
Modern tools are also being used to protect what has been uncovered. At the 5,000-year-old Tiger Ridge Dam, a white protective dome houses sensors that track humidity, temperature, and water levels in real time. If readings move beyond safe limits, an automatic drainage system activates.
The entire 162-square-kilometer (approximately 62.5 square miles) site is now covered by an intelligent monitoring network of cameras, drones, and fiber-optic cables. Sun Haibo, director of the Cultural Relics and Heritage Administration in Hangzhou, said all environmental data is fed into a central platform. Any anomaly triggers an alert and on-site response within 30 minutes.
Officials believe the system offers a global model for preserving ancient sites in humid climates.
Liangzhu is also using tech to help the public visualize its past. Visitors can scan QR codes to see 3D palaces appear on their phones. A new virtual reality program allows guests to "walk" through the city as it was 5,000 years ago, watching farmers, jade carvers and ritual ceremonies in a 35-minute immersive tour.
Site managers say the goal is to turn silent ruins into living history. As one official noted, the more people can see Liangzhu's world, the more likely they are to protect it.