Orientation studies have recently received considerable attention in the archaeological domain as a source of information that may shed light on a number of anthropological issues, such as belief systems or landscape and territory understanding by past cultures. This is especially important in those cultural contexts, such as the megalithic phenomena, where there are no written sources. Megalithic monument orientations can in many instances be explained only within an astronomical context, as has been shown by extensive archaeoastronomical fieldwork surveys and by statistical approaches to the problem. 1 Most of the surveys so far have been concentrated on the western Mediterranean and the European Atlantic façade. However, in present day Jordan, on the plateau to the east of the Jordan River valley are some of the largest and most attractive groups of dolmens in the Levant. 2 These stand comparison with the best exemplars of the West (see Figure 1). There have been a couple of preliminary attempts to analyse the orientation of these groups, but nothing systematic or conclusive has been produced so far. 3 This is especially troubling because specialists are now faced with the rapid destruction of the Hashemite Kingdom of Jordan's megalithic heritage, due to the building expansion which has converted several of the zones where the necropolises are located -and even the monuments themselves -into gigantic quarries, so as to obtain stone for construction and urban development. Figure 2 illustrates the situation. Being partially aware of this, 4 the authors planned a rescue campaign in the field in December 2011 to document the precise orientation of as many dolmens as the circumstances would permit, in a number of conspicuous and well documented necropolises.Since the nineteenth century, the British Palestine Exploration Fund has carried out archaeological surveys and expeditions on the eastern bank of the Jordan River, around the main ruins of Rabbat Ammon, the modern Amman, and in the area