Cult stone Černausku is also called Ezernieku stone. There is a cavity on the top of the boulder with ancient fire traces. In historical sources have been mentioned already in 1739 as Big stone, near the stone farmers, have been donating for several centuries.
It is 1,7 meters high and has a circumference of 16,7 meters. In the list of Latvian boulders, the cult stone Černausku ranks 79th.