Plūsčiai Hillfort, also known as Pilikė, stands in the Kelmė district municipality, near the village of Plūsčiai. It can be reached by taking the Valpainiai-Stulgiai road and turning right across the fields at the homestead in Plūsčiai, 300 meters to the left.
The hillfort is situated on a separate hill at the northern edge of a highland. It is surrounded by a swamp to the east and northeast and a ravine to the south, which directed water from the swamp to the valley. The site is round, with a diameter of 8 meters. According to a 1967 description, it
measured 15 meters long in a north-south direction and 10 meters wide. A rampart 0.5 meters high and 7 meters wide was built at the northwest edge of the site. The slopes of the hillfort are surrounded by two ditches and ramparts, which have now become terraces. On the northwest slope, 2 meters below the site, there is a 3.5-meter-wide, 0.2-meter-deep ditch with a 0.2-meter-high, 4-meter-wide rampart behind it (which have turned into terraces on other slopes). Another terrace, 4 meters wide, lies 1.5 meters below these. The slopes are steep, 8 meters high.