On 21st September 2020, Otto Lowe and Pedro Miró from Factum Foundation arrived in AlUla to start the largest high-resolution 3D recording project to be undertaken in the Kingdom of Saudi Arabia. The work, commissioned by the Royal Commission for AlUla (RCU), is planned to last for more than a year and will result in the production of a high-resolution 3D model of the Nabatean archaeological site of Hegra (also known as Mada’in Salih or Al-Ḥijr) as well as Dadan, Jabal Ikmah and Abu Ud.

The data from the recording of the historic landscape at AlUla (Hegra is a UNESCO World Heritage Site), will be processed by Factum’s experts and will be handed over to the Royal Commission for AlUla. The RCU will own the data for all current and future applications. Extensive work is currently underway to find an aesthetically beautiful way to view the data so it can dynamically respond in real time.

This information will be critical for the preservation of this extraordinary site as it becomes the focus of the country's drive to attract cultural tourism. High-resolution recording will not only help attract visitors but it will be essential to record a site that has been overlooked for many years. Condition monitoring and conservation mapping will provide a detailed framework for the archaeologists working on the site.

Factum Foundation is delighted to collaborate with the Royal Commission for AlUla on this ambitious project to preserve the heritage landmarks and cultural legacy of the Nabateans in and around the AlUla oasis.

Following the first trip to Saudi Arabia in October, a second team (Osama Dawod from Factum Foundation and Robert Kesak from Columbia University) travelled to AlUla in November 2020 to continue the recording at Hegra and begin work at Dadan. Meanwhile, the first team has been processing the data captured during the previous trip, which is being supplied to the Royal Commission for AlUla.

Between May and June 2021, the project entered its final phase: the focus moved away from the tomb façades and inscriptions and towards the environments in which they sat. The outcrops from which the tombs were carved in Hegra were recorded in their entirety using photogrammetry, operating only at sunrise and sunset due to the high temperatures in the desert in the middle of the day.

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