The Almirós plain borders the Pagasitikós gulf. It slopes from 300 m in the west, to sea level in the east and is surrounded by mountains and hills. The Soúrpi plain is an extension of the Almirós plain to the south and also borders the Pagasitikós gulf. The foothills of mount Óthris form the western part of the Soúrpi plain.
The focus of the research has been, not only on the distribution of sites in the Almirós and Soúrpi plain during the Classical-Hellenistic period, the period of existence of the sites of classical Halos and New Halos, but also on the prehistoric periods.
The survey project revealed four Neolithic sites in the Almirós area. Furthermore a small part of a Neolithic site under the name of Kamára was excavated. During the survey this was discovered to be at least 400 x 250 m. Bronze Age sites are relatively scarce in the Almirós plain. In the Soúrpi plain no less than three large Bronze Age sites were discovered.
In Classical-Hellenistic times the cities of Halos and New Halos were the central places in the southern part of the Almirós plain. Apart from these the team recorded a number of small sites, hamlets or farmsteads. In the Almirós plain, the survey teams also found watchtowers and small forts.
Sites dating from the Late Roman-Early Byzantine period were abundant in the Almirós plain. These mostly consisted of small sites, farmsteads or storage buildings. In the Soúrpi plain the survey team discovered a large site as well as a series of graves and some smaller sites dating to this period.
The medieval and post-medieval periods are well attested in the Almirós and Soúrpi plains. A number of sites from the medieval period were recorded, amongst which there was a fort, a chapel and two sites that may be considered to be the predecessors of modern-day Soúrpi and Drimóna. To the post-medieval period date a fort, watermill, bridge, olive factory and an abandoned farmstead.