This lake which is fed by the Grdoselski, the Dragučski, and the Račićke stream.
Name: Butoniga lake after a long drought.
Place: Near Jukani and Ukotiči – Pazin/Buzet.
Coordinates: Start Jukani 45.30603 N – 13.92537 E , dam Grdoselski potok 45.30983 N – 13.93064 E, Near lake 45.32077 N – 13.9396 E, Viewpoint Ukotiči 45.32357 N – 13.91456 E.