The archaeological site at Vlochos (Greek: Βλοχός [vloˈxos]) is located at the northeast corner of the western Thessalian plain, in the regional unit of Karditsa, Greece.

The site is centred around the large hill of Strongilovouni (Greek: Στρογγυλοβούνι) south of the modern village, and contains the remains of several urban settlements of Classical Antiquity.

The archaeological site at Vlochos is centred around the hill of Strongilovouni (313 metres above sea level), an isolated limestone feature at the northeast edge of the plain of Karditsa.

The closest polis neighbours of the ancient city were Krannon to the east, Atrax to the northeast, Phayttos to the north, Pharkadon to the northwest,[a] Methylion to the southwest, and Peirasia to the south.

[1] A continuation of the 2016–2018 fieldwork, the Palamas Archaeological Project (2020–) is ongoing, aiming at conducting excavations at the site as well as examining the immediate surroundings of the ancient city.

[1]: 43–45 At some time following this, the second building sub-phase brought some configurations to this layout, as the enclosed hilltop area was extended further to the north, and reinforced with 18 square towers.

Here, geophysical prospection has revealed evidence for considerable buried remains of this phase, including a large avenue (plateia) leading along the slope with over 20 deviating side-streets (stenopoi).

[1]: 59–63 Remains of monumental architecture as well as inscriptions have been found in the debris left by an abandoned 20th century quarry in the settlement area, indicating the existence of a possible sanctuary.

[11]: 320 [17]: 59-62 The 2016–2018 geophysical survey of the settlement area revealed the extensive remains of a hitherto unknown separately walled enceinte with 16 discernible towers.

Similarities with other sites in Mainland Greece, including Nicopolis, Plataea, and Tanagra, suggest that this phase of habitation belongs to the Roman period, possibly the late 200s AD.

A section of the easternmost preserved stretch of fortification walls at the site bear clear signs of having been repaired at a significantly later date than its 4th century BC original construction.

Evidence for similar re-fortification has been found at other sites in Thessaly, including at Pharsalos,[18]: 238–239  Echinos,[18]: 152  and Halos,[18]: 170–171  and additional fortresses that were repaired at the same time are known from Procopius.

Several Turkic and Slavic peoples migrated into or raided the Roman lands from across the Danube in the middle of the 6th century AD, creating the need for fortresses and other places of refuge.