Hegra (Mada'in Salih)

The available source identifies Hegra (Mada'in Salih) as an archaeological site of tombs and rock-cut structures located in the Al-'Ula area of Medina Province in the Hejaz region of Saudi Arabia. The excerpt supplied gives no construction dates, periods of occupation, ownership history, or site-specific incidents. No information about accessibility, conservation status, or modern management is present in the provided notes. The research notes also record a discrepancy between the user's requested location name (Wadi Hadramawt tombs and cave sites, Yemen) and the single provided source, which refers specifically to Hegra / Mada'in Salih in Saudi Arabia.