TEHRAN -- A new conservation initiative is under way along the eastern flank of Soltaniyeh, the UNESCO World Heritage property in north-western Iran, where archaeological trenches are being surveyed and prepared for stabilization ahead of plans to improve public access. 
The project seeks to reduce the risks of slope failure and falling stone while safeguarding the archaeological deposits that make the site an important resource for the study of Iran’s medieval past.
The work forms part of a wider management strategy for Soltaniyeh, whose monumental mausoleum is one of the outstanding achievements of Persian architecture. 
Known officially on UNESCO’s World Heritage List as Soltaniyeh, the property preserves the remains of a former Ilkhanid capital and was inscribed on the List in 2005. 
The Mausoleum of Oljaytu, constructed between 1302 and 1312, is particularly celebrated for its monumental turquoise-clad dome and innovative double-shell construction. 
Excavations across the wider property have also revealed traces of the historic city, extending its significance beyond the celebrated monument itself. 
The eastern trenches have attracted archaeological attention for approximately half a century. Their depth and exposed geological faces, however, present practical challenges for both conservation and access. 
The current intervention is intended to address these hazards without compromising the archaeological
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