Mound Opstainiai II is attached to a small pond in the village of Opstainiai. The pond was installed only during the Soviet era, flooding the natural stream of Apstelė, which naturally surrounded the hill. The hill is small raised just 4-8 m. The hillsides are steep, smooth, but there are no defensive fortifications anymore. The few clumps of rough ceramics found adjacent to the mound testify that it is an older hill. This place could be used from the first century BC to the tenth century. The hill is adapted for visitation. Next to the mountain is an expressive hill almost 37 m high, which offers great views of the surrounding area. In June, the hill is painted red because there is a bloom of the abundance of brassica plant in Lithuania - the beds of the common asparagus.