The locality is freely accessible. You can reach the site quite easily by an old road rising from the village of Radošov towards the eastern outer settlement and further, in the direction of the Hradiště Military Training Area. The site still offers a marvellous view of the surrounding countryside and a fascinating panoramic view of the Ohře River Valley.
The Late Bronze Age hill fort is situated northwest of the village of Radošov on Košťál Hill (formerly known as Stengelberg or Rodisberg) between two elevation points of 466 metres above sea level. The settlement is oriented from the northwest to the southeast, the Ohře River flows along the south and northwest, and the settlement is in sight of the hill fort in Velichov in the north.
The head of the hill creates a rather narrow high-level plain with steep slopes descending into the valley of the Ohře River in the south, west, and the north. A cross rampart separates the settlement in the east where the spur projects from the high-level plain massif. The 1100-metre long settlement is divided into western and eastern parts, which are connected by a lower narrow neck of land approximately three metres wide, whereas the eastern part can be considered as an outer surrounding.
A hardly noticeable stone wall at the edge of the slope in the outer surrounding is a relic of its collapsed circumvallation. The western part of the settlement is more monumental and it slowly descends from the acropolis towards the Ohře River in the west. The spur is quite narrow in the west and traces of rock outcrop can be found. It should be noted that older written resources did not rule out the possible medieval exploitation of the location.
The side walls of the western part of the settlement are covered by a considerable amount of stony debris, the massiveness of which creates an impression of a stone field. The debris is in fact a tumbledown primeval wall, the appearance of which remains unknown. Based on our knowledge of other primeval sites, however, we can presume that the wall was built not only from stone but also from wood and soil. In the steep slope near the main entry to the acropolis from the east, the stone field is disrupted by a modern road and we can thus explore its profile.
No archaeological research has been conducted on the site. Only ceramic material collected in the past is available. In 1985, an archaeological probe carried out in the shallow northern moat of the acropolis resulted in several dozen largely atypical fragmental pottery and loam findings that dated back to the period of the Knovíz Culture (Jaroslav Bašta, Jiří Klsák). The entire area was densely populated by the Cheb group belonging to the Urn Field Culture, with the exception of the area of Kadaň. This western, rather sharp frontier was defined by the hilly landscape.
Traces of the presence of the Urn Field Culture outside the Cheb Basin are also found in the valley of the Ohře River towards the east up to the district of Karlovy Vary (Drahovice). The easternmost findings include fragments from the hill forts in Radošov and Velichov. Both the hill forts are situated in an area where the Ohře River enters the defile of the Ore Mountains and the Doupov Mountains. The strategic position of these fortified settlements outside the actual settlement area of northwest Bohemia may indicate that they formed the eastern frontier of the Cheb and Karlovy Vary settlement area.
The hill fort in Radošov certainly played an important role in later periods. The fact that a major provincial trail leading over the Doupov Mountains crossed the ford (and later bridge) of the Ohře River below the hill fort is no mere coincidence. Many hollow paths of the Royal Trail have been preserved in the opposite slopes in the direction of the town of Ostrov to this day.