The mound of Šlavantai is located in the Yotvingian lands, on the west bank of Lake Šlavantas, on a steep sloped hill (up to 1.5 m high). From the south, the mound is surrounded by an unnamed narrow creek, to the east, by a lake valley, and to the north and west by lower fields. At the southwestern foot of the mound and on the other side of the nameless stream was an ancient settlement. Shards of rough surfaced pots found there show that the settlement, as well as the mound, was inhabited during the first millennium and the beginning of second millennium. On the slopes of Šlavantai mound grows hornbeam trees and rare medicinal hard grain plants.